WEBVTT

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All right, welcome back to the largest

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study on climbing falls. In the first

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episode we looked how does extra slack

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affect the fall, or more precisely does

00:00:11.320 --> 00:00:14.320
falling more reduce the pendulum into

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the wall and how hard the climber is

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going to hit the wall, and then I showed

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you the importance of soft catch and

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what a massive difference that makes and

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also that hard catches are not only the

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problem for heavier belayers

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lighter belayers often lack practice to

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give soft catches since most of the time

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they don't need they fly up anyway but

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in exceptional cases with enough

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friction... -My foot -What happened to your

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foot -Well it was a hard fall - Heavey belayer?

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-Llight belayer. Yeah yeah and I also

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asked you guys I'm curious did you ever

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got unexpectedly hard catch from a light

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belayer? And turns out this happens more

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often than I

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thought. so yeah light or heavy you're

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going to love this episode because we're

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going to investigate which method of

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giving soft catch is the best. We're

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going to compare stepping forward versus

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jumping up and as a bonus the tube slide

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method where the belayer lets the rope

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slide through the device which is more

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common in trad

00:01:24.799 --> 00:01:27.920
climbing so let's begin. Now in the

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previous episode I showed you this

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beautiful horizontal velocity graphs and

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I explained that the peak of horizontal

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velocity is at the bottom of the

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pendulum and that is a good indicator

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how hard the climber would meet the wall

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if the wall would not be overhanging and

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in this test I wanted to go a step

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further and see what happens when the

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climber meets the wall. - 1... 2... 3...

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and my idea this time was to

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measure deceleration during the impact

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and in many of our test cases

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this idea was working really well. If we

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compare the soft catches to the hard one

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you can see a huge spike in

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deceleration. However after doing lots

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and lots of more falls and analyzing the

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data I realized that the peak

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deceleration is not always a good metric

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to look. for example take a look at this

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hard catch you can visually see that it

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was much harder for the climber but the

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peak deceleration was nearly identical

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to the soft catches before, so it turns

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out our soft bodies are incredible at

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absorbing

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impacts but the problem is that it's

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very difficult to measure what's

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happening in our muscles during this

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impact. So while peak deceleration was

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interesting to look in some cases,

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horizontal velocity at the moment of

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impact was much better indicator. After

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all, all of this velocity that we are

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about to hit the wall will need to be

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absorbed by our soft bodies. Okay so

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let's see which method to give a soft

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catch is the best. To not kill me on the

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very first test we started with smaller

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falls and jumping up technique. And these

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falls were extremely nice and soft.

NOTE Paragraph

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[Climber] - A soft ride! 
So let's see how stepping

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forward will compare. 
[Climber] - 1... 2... 3...

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- This is harder.
And the fall this time

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felt a little bit harder and we can also

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see that in the graphs. However overall

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it was still a very soft catch.

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And the second fall was very similar.

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Also a quick note: I was not sure

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how much stiffer the rope gets over

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multiple falls, and even though in this

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video I'm presenting you all the data

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grouped by method, meaning at first I

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show you all the soft catches with

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jumping up method, then I show you all

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the soft catches with stepping forward,

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in reality we did alternate between the

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methods between every fall. So we did a

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jumping up and then stepping forward, etc.

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Pointless information for most of

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you, but I know that a lot of geeks are

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watching my videos and we like to write

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nitpicky comments, so this is for you

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nitpicky geek. All right now let's see

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how the tube slide method compares and

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while I was expecting a lot from this

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method, the first fall wasn't any better.

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The second fall had a very low momentum

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into the wall but a lot of vertical

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momentum, which made me almost run across

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the wall, which was slightly

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uncomfortable. So we tried again and this

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time the fall was much nicer and I know

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that people like to try all the crazy

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things they see on the internet so

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that's why I have to stress that this

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tube slide method is really advanced, so

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if you don't know what you're doing, make

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sure that you have an expert guiding you.

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Now if we would compare all the best

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attempts of all the methods, we can see

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that the jumping up was slightly better

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but overall all the method were very

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similar. 
[Climber] - So all of these falls felt quite

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soft except the one where he does

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nothing, then I fell to the wall.

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Yeah we actually forgot to film hard catches

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where the belayer does nothing on this

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test, but no worries this was just a

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small warm-up.
And let's see some bigger falls.

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So this time we started with a

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tube slide method,

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which at least in theory, 
lets the belayer achieve

00:05:56.790 --> 00:05:58.700
any full arc.

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And here is one more attempt

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this time with even bigger arc or longer

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breaking distance and the fall was just

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tiny bit softer for the climber for now

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I'm just going to keep the softest

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attempt in the charts and let's see how

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does that compared to the jumping up

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technique and we can see that the first

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fall was slightly smaller however it had

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nearly identical horizontal acceleration

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and velocity however it also had lower

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absolute velocity which is actually

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better for the climber now the second

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fall was slightly smaller but had a tiny

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bit more horizontal velocity towards the

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wall and again let's keep the best

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attempts of each method and see how does

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that compare to the stepping forward

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technique and we can see that the fall

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was smallest however it had the greatest

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impact to the wall now on the second

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attempt the bler did a much better job

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and the fall was significantly softer

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and if we compare all the best attempts

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of all the methods we can see that the

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horizontal speed at the moment of impact

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was nearly identical which means that at

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least in this test case scenario a

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skilled belayer can achieve almost the

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same results with any method but since

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consistency in catches also matters if

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we compare the worst attempts tube slide

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method was the best followed by jumping

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up and then the stepping forward was the

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worst however even the worst cases of

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any of these methods were much much

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better compared to the passive DeLay So

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the first arising takeaway was that no

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matter which method you choose to give a

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soft catch it's going to be much better

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than passively standing and doing

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nothing

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and as always one test is no test so I

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wanted to repeat these tests in a

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different location with another belay

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Ricky who has also a lot of experience

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using this tube slide method and he told

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me that it's actually his preferred

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method so high expectations again two

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three okay

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falling that was

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super so we did three attempts and all

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of them had very similar horizontal

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velocity nice

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consistency next we tested the stepping

00:08:38.240 --> 00:08:40.880
forward method and we can see that the

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fall was much shorter and had a much

00:08:43.839 --> 00:08:46.760
greater swing into the wall it seemed

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that the Blair was pulled towards the

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wall way too much and did not had enough

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control to make the false

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[Music]

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move

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all right next the jumping up method

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where Ricky actually did a very bad job

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on the first

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attempt and the same happened on the

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second attempt where his jump was very

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minimal only initiated a little bit from

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his right cuff so that's not how you

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jump and that's why I decided to ignore

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these two attempts for the poor

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technique and after He adjusted his

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technique on the third jump he jumped

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with both legs and it was much much

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better and finally we did one passive

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catch where the Blair does nothing and

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same as before it causes significantly

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higher swing into the wall so at least

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in this test case scenario tube slide

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was the best followed by jumping up and

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stepping forward was again the

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worst so stepping forward versus uh

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jumping up yes stepping forward was not

00:10:01.079 --> 00:10:04.360
in a controlled way I was just pulled to

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the wall mm I tried to lean

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backwards to to break to catch a fall

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but it was not in a controll way and

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jumping up I can choose how much I want

00:10:15.880 --> 00:10:18.680
to jump and at what timing so overall

00:10:18.680 --> 00:10:20.800
which method is the best will heavily

00:10:20.800 --> 00:10:22.800
depend on your experience using this

00:10:22.800 --> 00:10:26.000
methods however stepping forward seemed

00:10:26.000 --> 00:10:29.360
to be the worst and gave the least

00:10:29.360 --> 00:10:32.160
control and also worth mentioning is

00:10:32.160 --> 00:10:35.399
that standing too far in many situations

00:10:35.399 --> 00:10:37.839
can drag the Blair into the wall

00:10:37.839 --> 00:10:40.600
completely

00:10:40.920 --> 00:10:43.600
uncontrollably okay now was

00:10:43.600 --> 00:10:48.720
like and that would make the catch even

00:10:49.760 --> 00:10:53.120
harder all right but what if the Blair

00:10:53.120 --> 00:10:56.160
is significantly heavier in that case if

00:10:56.160 --> 00:10:58.560
you try the jumping method there is not

00:10:58.560 --> 00:11:01.959
much pull up by the rope and jumping is

00:11:01.959 --> 00:11:04.959
much more difficult so maybe stepping

00:11:04.959 --> 00:11:07.920
forward is better in this case to test

00:11:07.920 --> 00:11:10.720
that kishu suggested to introduce extra

00:11:10.720 --> 00:11:12.880
friction which basically makes the

00:11:12.880 --> 00:11:14.320
blayer

00:11:14.320 --> 00:11:18.040
heavier can we try like this he wants to

00:11:18.040 --> 00:11:23.040
kill me so that's what we got a little

00:11:23.040 --> 00:11:25.959
zigzag in the beginning and then a

00:11:25.959 --> 00:11:29.040
straight line all the way to the climber

00:11:29.040 --> 00:11:31.560
so the Rope actually is not going over

00:11:31.560 --> 00:11:35.160
the edge it's just very sharp angle you

00:11:35.160 --> 00:11:38.639
have to for sorry he says you have to

00:11:38.639 --> 00:11:41.170
fall 1 2

00:11:41.170 --> 00:11:43.360
[Music]

00:11:43.360 --> 00:11:46.880
3 the swing into the wall

00:11:46.880 --> 00:11:48.800
is

00:11:48.800 --> 00:11:51.399
okayish so we started with jumping

00:11:51.399 --> 00:11:54.839
method which felt slightly harder with

00:11:54.839 --> 00:11:58.519
increased friction but still plenty soft

00:11:58.519 --> 00:12:00.120
enough

00:12:00.120 --> 00:12:02.440
yeah just take a look at this Bel

00:12:02.440 --> 00:12:05.000
running up the wall and even avoiding

00:12:05.000 --> 00:12:07.399
his arm being squished into the first

00:12:07.399 --> 00:12:11.160
Quick Draw skills huh so let's see if

00:12:11.160 --> 00:12:13.920
with increased friction stepping forward

00:12:13.920 --> 00:12:16.440
will be better this time he was not

00:12:16.440 --> 00:12:18.560
pulled into the wall uncontrollably

00:12:18.560 --> 00:12:21.360
anymore it also looks like he got the

00:12:21.360 --> 00:12:23.959
perfect timing and even started running

00:12:23.959 --> 00:12:27.680
forward just before they impact however

00:12:27.680 --> 00:12:30.199
they swing into the ball for the climber

00:12:30.199 --> 00:12:33.880
was still harder compared to the jumping

00:12:33.880 --> 00:12:36.959
method okay next we did a series of tube

00:12:36.959 --> 00:12:40.240
slight catches the first felt very nice

00:12:40.240 --> 00:12:43.839
and soft now the second fall had even

00:12:43.839 --> 00:12:46.839
softer impact with the wall however I

00:12:46.839 --> 00:12:49.360
still had a lot of momentum downwards

00:12:49.360 --> 00:12:52.240
which forced me almost run down the wall

00:12:52.240 --> 00:12:53.680
which is a little bit

00:12:53.680 --> 00:12:56.720
awkward and the last fall had a very

00:12:56.720 --> 00:12:57.839
similar

00:12:57.839 --> 00:12:59.440
effect

00:12:59.440 --> 00:13:01.639
and if we look into the best cases for

00:13:01.639 --> 00:13:04.360
each method we can see that jumping up

00:13:04.360 --> 00:13:07.399
and Tube slide were very very similar

00:13:07.399 --> 00:13:10.240
and the stepping forward was slightly

00:13:10.240 --> 00:13:13.120
worse and this bar chart plots all the

00:13:13.120 --> 00:13:16.839
Falls so we can see that on average tube

00:13:16.839 --> 00:13:19.519
slide method performed the best followed

00:13:19.519 --> 00:13:22.120
by jumping up and then stepping forward

00:13:22.120 --> 00:13:25.279
was the worst now from Pure feeling

00:13:25.279 --> 00:13:27.920
standpoint for me as a climber both

00:13:27.920 --> 00:13:30.839
jumping up and Tube slide methods felt

00:13:30.839 --> 00:13:33.720
very nice and soft maybe if I would be

00:13:33.720 --> 00:13:37.120
nitpicking this extra momentum downwards

00:13:37.120 --> 00:13:39.120
sometimes on the tube slide method was

00:13:39.120 --> 00:13:41.279
slightly uncomfortable although in

00:13:41.279 --> 00:13:43.680
theory the blayer should be able to give

00:13:43.680 --> 00:13:45.839
almost any kind of catch with this

00:13:45.839 --> 00:13:49.040
method and the stepping forward method

00:13:49.040 --> 00:13:51.800
was maybe slightly harder had slightly

00:13:51.800 --> 00:13:54.600
bigger impact to the wall however it was

00:13:54.600 --> 00:13:57.800
still plenty soft enough and what is not

00:13:57.800 --> 00:14:01.759
soft enough is passive blay so once

00:14:01.759 --> 00:14:04.399
again no matter which soft catch method

00:14:04.399 --> 00:14:07.639
we tried it was significantly better

00:14:07.639 --> 00:14:10.959
than passive Bay and with added friction

00:14:10.959 --> 00:14:13.440
the Bayer wasn't even lifted off the

00:14:13.440 --> 00:14:16.120
ground this time previously when we had

00:14:16.120 --> 00:14:18.800
no friction passive blay looked like

00:14:18.800 --> 00:14:22.320
this the blayer was still pulled up but

00:14:22.320 --> 00:14:25.240
now with extra friction that is not the

00:14:25.240 --> 00:14:27.120
case anymore and you can see how the

00:14:27.120 --> 00:14:29.880
climber is being pulled up and into the

00:14:29.880 --> 00:14:32.880
wall even

00:14:33.160 --> 00:14:34.839
harder

00:14:34.839 --> 00:14:38.480
yeah okay that

00:14:38.480 --> 00:14:42.120
was that was the way it was so yeah

00:14:42.120 --> 00:14:44.839
don't forget to subscribe I might need

00:14:44.839 --> 00:14:47.399
advertisement money to fix my broken

00:14:47.399 --> 00:14:51.639
body at old age so what's your favorite

00:14:51.639 --> 00:14:54.759
method yeah jumping up jumping up yes

00:14:54.759 --> 00:14:56.959
mhm okay so we were leaning towards

00:14:56.959 --> 00:15:00.399
jumping as our favorite meth foot but

00:15:00.399 --> 00:15:03.160
what if the blayer is really really

00:15:03.160 --> 00:15:05.399
heavy or there is so much friction in

00:15:05.399 --> 00:15:08.120
the system that the Rope Almost Doesn't

00:15:08.120 --> 00:15:12.959
pull the Blair up in that case you can

00:15:12.959 --> 00:15:17.839
jump I don't know what 30 40 cm maybe 50

00:15:17.839 --> 00:15:21.079
if you're a crazy athlete but is that

00:15:21.079 --> 00:15:23.680
enough for the soft catch and this

00:15:23.680 --> 00:15:26.079
brings us to this experiment here we did

00:15:26.079 --> 00:15:28.680
a series of false alternating between

00:15:28.680 --> 00:15:31.399
stepping forward and jumping up and we

00:15:31.399 --> 00:15:34.120
measured the forces to the climber and

00:15:34.120 --> 00:15:36.399
same as before jumping up was

00:15:36.399 --> 00:15:38.480
consistently better than stepping

00:15:38.480 --> 00:15:40.880
forward and doing nothing was

00:15:40.880 --> 00:15:43.360
significantly worse and then we decided

00:15:43.360 --> 00:15:46.360
to introduce this zigzag in the rout and

00:15:46.360 --> 00:15:49.279
although it doesn't look like much it

00:15:49.279 --> 00:15:52.240
actually added a ton of friction

00:15:52.240 --> 00:15:56.319
basically imitating a very heavy blay

00:15:56.319 --> 00:16:01.319
what wa I couldn't jump at all and as I

00:16:01.319 --> 00:16:04.480
was expecting jumping up was not working

00:16:04.480 --> 00:16:07.279
at all in this case so let's see if

00:16:07.279 --> 00:16:11.519
stepping forward is going to be better 2

00:16:12.000 --> 00:16:14.279
1 wow that was

00:16:14.279 --> 00:16:16.399
solid

00:16:16.399 --> 00:16:22.680
2.5 oh [ __ ] Z and it actually was even

00:16:23.040 --> 00:16:25.839
worse man I cannot give you a soft catch

00:16:25.839 --> 00:16:28.560
this way so yeah no matter how much I

00:16:28.560 --> 00:16:31.560
Tri to jump I was not able to give a

00:16:31.560 --> 00:16:34.279
truly soft catch and stepping forward

00:16:34.279 --> 00:16:35.959
was even

00:16:35.959 --> 00:16:38.560
worse it's impossible to give a soft

00:16:38.560 --> 00:16:41.399
catch like this to time well the

00:16:41.399 --> 00:16:44.440
stepping forward and such a short fall

00:16:44.440 --> 00:16:48.560
is nearly impossible yeah now while it

00:16:48.560 --> 00:16:51.600
seemed that heavy blers are doomed on

00:16:51.600 --> 00:16:53.839
this next experiment I actually

00:16:53.839 --> 00:16:56.680
discovered something that helps this

00:16:56.680 --> 00:16:59.800
time I was belaying a light girl and as

00:16:59.800 --> 00:17:02.360
before I was also struggling to give a

00:17:02.360 --> 00:17:06.480
soft catch the jumping simply did not

00:17:06.480 --> 00:17:09.280
work and neither did the stepping

00:17:09.280 --> 00:17:14.919
forward method but then I discovered

00:17:15.160 --> 00:17:20.839
something better better this one was

00:17:21.079 --> 00:17:25.919
soft yes it's soft so yeah turns out

00:17:25.919 --> 00:17:28.039
that bending Den KN will give you more

00:17:28.039 --> 00:17:30.799
range of movement and in this test case

00:17:30.799 --> 00:17:34.039
scenario it made a huge difference it

00:17:34.039 --> 00:17:36.440
the fall

00:17:36.440 --> 00:17:39.919
was just super soft and the others was

00:17:39.919 --> 00:17:44.840
boom like boom yeah yeah yeah so it's Bo

00:17:44.840 --> 00:17:48.640
versus and we prefer wo you prefer woo

00:17:48.640 --> 00:17:51.440
yeah yeah and although I already

00:17:51.440 --> 00:17:53.320
mentioned this in the first episode but

00:17:53.320 --> 00:17:56.080
it's really important to stress that

00:17:56.080 --> 00:17:59.320
simply throwing a lot of Slack does not

00:17:59.320 --> 00:18:03.559
mean a soft catch

00:18:05.120 --> 00:18:09.320
okay this [ __ ] and in a case of a

00:18:09.320 --> 00:18:12.600
passive Bay can end up very badly and

00:18:12.600 --> 00:18:14.880
the only reason she was fine in this

00:18:14.880 --> 00:18:17.280
case was because she was falling

00:18:17.280 --> 00:18:20.039
straight down under the Quick Draw so

00:18:20.039 --> 00:18:22.520
all she felt was just a jerk to the

00:18:22.520 --> 00:18:25.360
harness in a different situation with a

00:18:25.360 --> 00:18:28.200
little bit of swing that kind of catch

00:18:28.200 --> 00:18:31.559
with would probably break her ankles so

00:18:31.559 --> 00:18:33.720
instead of feeding a ton of slack for

00:18:33.720 --> 00:18:36.960
your climber maybe you should feed your

00:18:36.960 --> 00:18:39.360
climber and as we saw If the fall is

00:18:39.360 --> 00:18:42.159
small bending the knees before the fall

00:18:42.159 --> 00:18:45.280
might help now in case of a big whipper

00:18:45.280 --> 00:18:48.080
the fall naturally is much bigger so you

00:18:48.080 --> 00:18:50.480
will have more time to go down and

00:18:50.480 --> 00:18:52.799
explode up and from B mechanical

00:18:52.799 --> 00:18:55.120
standpoint since our muscles act as

00:18:55.120 --> 00:18:58.440
Springs going down and jumping up should

00:18:58.440 --> 00:19:01.200
result into a higher jump now if that

00:19:01.200 --> 00:19:03.640
doesn't help I would suggest more food

00:19:03.640 --> 00:19:06.480
cycles and if that's not an option then

00:19:06.480 --> 00:19:08.960
I've seen a method used by a very heavy

00:19:08.960 --> 00:19:11.400
Blair which worked very well for him

00:19:11.400 --> 00:19:14.600
where he took a little bit of slack with

00:19:14.600 --> 00:19:18.039
his lead hand and during the impact he

00:19:18.039 --> 00:19:22.440
used his lead hand to soften the

00:19:22.520 --> 00:19:26.000
catch it is extremely important to not

00:19:26.000 --> 00:19:28.880
have too much slack here or you will

00:19:28.880 --> 00:19:31.600
burn your hand so be smart and use this

00:19:31.600 --> 00:19:34.559
at your own risk this is sketchy but

00:19:34.559 --> 00:19:36.679
I've seen it working really well or

00:19:36.679 --> 00:19:39.159
alternatively go old school and learn

00:19:39.159 --> 00:19:41.919
how to use tube style BL then it doesn't

00:19:41.919 --> 00:19:43.799
matter what's the weight of the climber

00:19:43.799 --> 00:19:46.400
you can always make a soft catch but of

00:19:46.400 --> 00:19:48.760
course that comes with its own risks of

00:19:48.760 --> 00:19:51.480
not having assisted blade device but for

00:19:51.480 --> 00:19:53.720
majority of you jumping up is going to

00:19:53.720 --> 00:19:56.520
be the best and if for whatever reason

00:19:56.520 --> 00:19:58.600
you find yourself away from the wall

00:19:58.600 --> 00:20:01.960
then just do stepping forward as we saw

00:20:01.960 --> 00:20:04.480
whatever soft catch method is much

00:20:04.480 --> 00:20:06.679
better than passive delay now I

00:20:06.679 --> 00:20:08.280
understand that this video was full of

00:20:08.280 --> 00:20:10.840
charts and graphs and chances are if

00:20:10.840 --> 00:20:12.280
you're still watching you're a little

00:20:12.280 --> 00:20:14.799
bit nerdy however I'm going to make a

00:20:14.799 --> 00:20:17.320
separate video for my blay Master Class

00:20:17.320 --> 00:20:19.360
where I will go more on practical

00:20:19.360 --> 00:20:22.320
details including those sketchy low to

00:20:22.320 --> 00:20:25.080
the ground situations and also during

00:20:25.080 --> 00:20:27.200
these two years we have measured forces

00:20:27.200 --> 00:20:30.159
on hundred of Falls so we have a lot of

00:20:30.159 --> 00:20:32.120
data but as I explained in previous

00:20:32.120 --> 00:20:34.840
episodes Peak Force to the climber might

00:20:34.840 --> 00:20:37.120
not be the most important factor for

00:20:37.120 --> 00:20:38.240
sport

00:20:38.240 --> 00:20:41.080
climbers however that might be much more

00:20:41.080 --> 00:20:45.840
important for TR climbers keep a good

00:20:47.200 --> 00:20:50.840
eye [ __ ] so I guess this deserves an

00:20:50.840 --> 00:20:53.480
episode for trout climbers as well and

00:20:53.480 --> 00:20:55.640
all of these people and supporters

00:20:55.640 --> 00:20:58.280
deserve a huge thank you none of this

00:20:58.280 --> 00:21:00.400
project would been possible without all

00:21:00.400 --> 00:21:03.559
of you and you deserve some

00:21:03.559 --> 00:21:06.200
knowledge for the last 6 months I was

00:21:06.200 --> 00:21:09.000
warming up my brain in the mornings with

00:21:09.000 --> 00:21:12.039
brilliant.org which is an awesome online

00:21:12.039 --> 00:21:14.880
platform for learning math data science

00:21:14.880 --> 00:21:17.559
and computer science

00:21:17.559 --> 00:21:19.600
interactively good morning Ben how are

00:21:19.600 --> 00:21:22.080
you ah feeling like Quan in for

00:21:22.080 --> 00:21:24.440
dimensional space with emotions twisting

00:21:24.440 --> 00:21:26.960
like meus transformation and my mood

00:21:26.960 --> 00:21:29.880
transforming like like ien vector so not

00:21:29.880 --> 00:21:31.919
only you get deeper connections with

00:21:31.919 --> 00:21:34.440
your smart friends you also deepen your

00:21:34.440 --> 00:21:36.640
scientific understanding of the world

00:21:36.640 --> 00:21:39.320
just imagine how your regular life

00:21:39.320 --> 00:21:41.440
problems will look when you will be

00:21:41.440 --> 00:21:44.080
contemplating that we are all just

00:21:44.080 --> 00:21:47.120
riding a giant rock through constantly

00:21:47.120 --> 00:21:50.320
expanding space with supernovas and

00:21:50.320 --> 00:21:53.360
solar winds or maybe before human

00:21:53.360 --> 00:21:57.000
thinking becomes obsolete write a short

00:21:57.000 --> 00:22:02.120
math point poem in a style of me you

00:22:02.120 --> 00:22:05.039
want to know how Chad GPT works so

00:22:05.039 --> 00:22:06.880
whenever you're are a complete beginner

00:22:06.880 --> 00:22:09.200
or ready to dive into machine learning

00:22:09.200 --> 00:22:11.880
and Beyond brilliant.org makes it easy

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first 200 of you can also get 20% off

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their annual premium subscription

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so thank you brilliant for making sure

00:22:31.720 --> 00:22:34.279
that we still use our brain and thank

00:22:34.279 --> 00:22:37.080
you for watching enjoy your brain and

00:22:37.080 --> 00:22:40.120
climbing and see you in the next one now

00:22:40.120 --> 00:22:44.799
it's going to be fun feeling like

00:22:45.240 --> 00:22:49.240
qu that word