[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:01.60,0:00:02.83,Default,,0000,0000,0000,,Supported by Dialogue: 0,0:00:02.83,0:00:04.35,Default,,0000,0000,0000,,Supported by\N{\b1}Protocol Labs{\b0} Dialogue: 0,0:00:04.35,0:00:05.42,Default,,0000,0000,0000,,Supported by\N{\b1}Protocol Labs{\b0}\N{\i1}Follow your curiosity.{\i0} Dialogue: 0,0:00:05.42,0:00:09.19,Default,,0000,0000,0000,,Supported By\NProtocol Labs\N{\i1}Follow your curiosity.{\i0}\N{\i1}Lead humanity forward.{\i0} Dialogue: 0,0:00:09.19,0:00:09.44,Default,,0000,0000,0000,,Protocol Labs\N{\i1}Follow your curiosity.{\i0}\N{\i1}Lead humanity forward.{\i0} Dialogue: 0,0:00:09.44,0:00:09.69,Default,,0000,0000,0000,,{\i1}Follow your curiosity.{\i0}\N{\i1}Lead humanity forward.{\i0} Dialogue: 0,0:00:16.82,0:00:19.13,Default,,0000,0000,0000,,"In all the universe, Dialogue: 0,0:00:19.13,0:00:24.54,Default,,0000,0000,0000,,"In all the universe,\Nthere stands only one known tree of life." Dialogue: 0,0:00:31.42,0:00:34.44,Default,,0000,0000,0000,,"Does it stand alone? Dialogue: 0,0:00:34.44,0:00:40.31,Default,,0000,0000,0000,,"Does it stand alone?\NOr is it part of a vast cosmic wilderness?" Dialogue: 0,0:00:46.04,0:00:52.54,Default,,0000,0000,0000,,"Imagine a museum\Ncontaining every type of life in the universe." Dialogue: 0,0:00:58.36,0:01:00.76,Default,,0000,0000,0000,,"What strange things would such a museum hold?" Dialogue: 0,0:01:16.26,0:01:18.67,Default,,0000,0000,0000,,"What is possible under the laws of nature?" Dialogue: 0,0:01:39.77,0:01:40.91,Default,,0000,0000,0000,,LIFE Dialogue: 0,0:01:40.91,0:01:45.61,Default,,0000,0000,0000,,LIFE BEYOND Dialogue: 0,0:01:49.02,0:01:49.88,Default,,0000,0000,0000,,{\b1}CHAPTER II{\b0} Dialogue: 0,0:01:49.88,0:01:55.41,Default,,0000,0000,0000,,{\b1}CHAPTER II{\b0}\N{\i1}The Museum Of Alien Life{\i0} Dialogue: 0,0:02:02.80,0:02:03.66,Default,,0000,0000,0000,,To have any hope- Dialogue: 0,0:02:03.66,0:02:05.51,Default,,0000,0000,0000,,of finding alien life, Dialogue: 0,0:02:05.54,0:02:07.41,Default,,0000,0000,0000,,we have to know what to look for. Dialogue: 0,0:02:12.06,0:02:13.94,Default,,0000,0000,0000,,But where do we begin? Dialogue: 0,0:02:15.30,0:02:16.45,Default,,0000,0000,0000,,How do we narrow down... Dialogue: 0,0:02:16.57,0:02:18.07,Default,,0000,0000,0000,,a seemingly infinite set- Dialogue: 0,0:02:18.07,0:02:20.18,Default,,0000,0000,0000,,of possibilities... Dialogue: 0,0:02:27.31,0:02:29.97,Default,,0000,0000,0000,,There's one thing we know for sure... Dialogue: 0,0:02:30.68,0:02:32.04,Default,,0000,0000,0000,,nature will have to play- Dialogue: 0,0:02:32.08,0:02:33.38,Default,,0000,0000,0000,,by her own rules. Dialogue: 0,0:02:36.79,0:02:38.17,Default,,0000,0000,0000,,No matter how strange Dialogue: 0,0:02:38.20,0:02:39.81,Default,,0000,0000,0000,,alien life might be, Dialogue: 0,0:02:40.39,0:02:41.18,Default,,0000,0000,0000,,is going to be limited- Dialogue: 0,0:02:41.22,0:02:42.60,Default,,0000,0000,0000,,by the same physical... Dialogue: 0,0:02:42.61,0:02:44.76,Default,,0000,0000,0000,,and chemical laws that we are.... Dialogue: 0,0:02:46.95,0:02:47.01,Default,,0000,0000,0000,,6 Dialogue: 0,0:02:47.01,0:02:47.08,Default,,0000,0000,0000,,6 C Dialogue: 0,0:02:47.08,0:02:47.14,Default,,0000,0000,0000,,6 CO Dialogue: 0,0:02:47.14,0:02:47.20,Default,,0000,0000,0000,,6 CO² Dialogue: 0,0:02:47.20,0:02:47.26,Default,,0000,0000,0000,,6 CO² + Dialogue: 0,0:02:47.26,0:02:47.33,Default,,0000,0000,0000,,6 CO² + 6 Dialogue: 0,0:02:47.33,0:02:47.39,Default,,0000,0000,0000,,6 CO² + 6 H Dialogue: 0,0:02:47.39,0:02:47.45,Default,,0000,0000,0000,,6 CO² + 6 H² Dialogue: 0,0:02:47.45,0:02:47.51,Default,,0000,0000,0000,,6 CO² + 6 H²O Dialogue: 0,0:02:47.51,0:02:47.58,Default,,0000,0000,0000,,6 CO² + 6 H²O + Dialogue: 0,0:02:47.58,0:02:47.64,Default,,0000,0000,0000,,6 CO² + 6 H²O + L Dialogue: 0,0:02:47.64,0:02:47.70,Default,,0000,0000,0000,,6 CO² + 6 H²O + Li Dialogue: 0,0:02:47.70,0:02:47.76,Default,,0000,0000,0000,,6 CO² + 6 H²O + Lig Dialogue: 0,0:02:47.76,0:02:47.83,Default,,0000,0000,0000,,6 CO² + 6 H²O + Ligh Dialogue: 0,0:02:47.83,0:02:47.89,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light Dialogue: 0,0:02:47.89,0:02:47.95,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → Dialogue: 0,0:02:47.95,0:02:48.01,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C Dialogue: 0,0:02:48.01,0:02:48.08,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶ Dialogue: 0,0:02:48.08,0:02:48.14,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H Dialogue: 0,0:02:48.14,0:02:48.20,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹ Dialogue: 0,0:02:48.20,0:02:48.26,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹² Dialogue: 0,0:02:48.26,0:02:48.33,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹²O Dialogue: 0,0:02:48.33,0:02:48.39,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹²O⁶ Dialogue: 0,0:02:48.39,0:02:48.45,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹²O⁶ + Dialogue: 0,0:02:48.45,0:02:48.51,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹²O⁶ + 6 Dialogue: 0,0:02:48.51,0:02:48.58,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹²O⁶ + 6 O Dialogue: 0,0:02:48.58,0:02:51.61,Default,,0000,0000,0000,,6 CO² + 6 H²O + Light → C⁶H¹²O⁶ + 6 O² Dialogue: 0,0:02:51.61,0:02:52.31,Default,,0000,0000,0000,,On top of this,\N6 CO² + 6 H²O + Light → C⁶H¹²O⁶ + 6 O² Dialogue: 0,0:02:52.31,0:02:52.73,Default,,0000,0000,0000,,On top of this, Dialogue: 0,0:02:53.24,0:02:53.69,Default,,0000,0000,0000,,each alien environment will further limit- Dialogue: 0,0:02:53.69,0:02:55.24,Default,,0000,0000,0000,,each alien environment will further limit-\N-{\i1}Hydrogen{\i0}- Dialogue: 0,0:02:55.24,0:02:55.67,Default,,0000,0000,0000,,each alien environment will further limit-\N-{\i1}Oxygen-{\i0} Dialogue: 0,0:02:55.67,0:02:57.37,Default,,0000,0000,0000,,what kinds of life forms can evolve there.\N-{\i1}Oxygen-{\i0} Dialogue: 0,0:02:57.37,0:02:59.38,Default,,0000,0000,0000,,what kinds of life forms can evolve there.\N-{\i1}Nitrogen{\i0}- Dialogue: 0,0:03:06.99,0:03:09.19,Default,,0000,0000,0000,,Despite these natural boundaries, Dialogue: 0,0:03:09.24,0:03:12.21,Default,,0000,0000,0000,,the possibilities are staggering to imagine. Dialogue: 0,0:03:14.24,0:03:15.64,Default,,0000,0000,0000,,Trillions of planets, Dialogue: 0,0:03:15.78,0:03:17.88,Default,,0000,0000,0000,,each a unique cauldron of chemicals, Dialogue: 0,0:03:17.92,0:03:23.08,Default,,0000,0000,0000,,undergoing their own complex evolution. Dialogue: 0,0:03:28.30,0:03:33.55,Default,,0000,0000,0000,,To guide our thinking, this museum of alien life\Nwill be divided into two exhibits: Dialogue: 0,0:03:35.77,0:03:40.18,Default,,0000,0000,0000,,Life as we know it: home to beings \Nwith bio-chemistries like ours. Dialogue: 0,0:03:41.96,0:03:47.92,Default,,0000,0000,0000,,And life as we don't know it: home to beings \Nthat challenge our concept of life itself. Dialogue: 0,0:03:54.13,0:03:56.63,Default,,0000,0000,0000,,Before we venture too far \Ninto the unknown, Dialogue: 0,0:03:57.10,0:03:58.59,Default,,0000,0000,0000,,we have to ask ourselves: Dialogue: 0,0:04:00.14,0:04:03.00,Default,,0000,0000,0000,,what if alien life is more \Nlike ours than we think? Dialogue: 0,0:04:10.82,0:04:12.73,Default,,0000,0000,0000,,{\b1}EXHIBIT I{\b0} Dialogue: 0,0:04:12.73,0:04:15.02,Default,,0000,0000,0000,,{\b1}EXHIBIT I{\b0}\N{\b1}LIFE AS WE KNOW IT{\b0} Dialogue: 0,0:04:15.02,0:04:15.44,Default,,0000,0000,0000,,{\b1}EXHIBIT I{\b0}\N{\b1}LIFE AS WE KNOW IT{\b0}\N{\b1}CARBON & WATER BASED{\b0} Dialogue: 0,0:04:15.44,0:04:20.80,Default,,0000,0000,0000,,If there's one feature that unites us with \Nthese other specimes in this museum, it's carbon. Dialogue: 0,0:04:25.01,0:04:29.38,Default,,0000,0000,0000,,Carbon is ubiquitous, it's one of the \Nmost common elements in the universe, Dialogue: 0,0:04:29.74,0:04:32.75,Default,,0000,0000,0000,,and is very good at forming \Nlarge stable molecules. Dialogue: 0,0:04:37.29,0:04:41.50,Default,,0000,0000,0000,,Carbon has the rare ability to form four way\Nbounds with other elements Dialogue: 0,0:04:41.81,0:04:44.71,Default,,0000,0000,0000,,and to bind to itself in \Nlong, stable chains; Dialogue: 0,0:04:46.42,0:04:49.62,Default,,0000,0000,0000,,enabling the formation of \Nhuge complex molecules. Dialogue: 0,0:04:56.20,0:04:59.09,Default,,0000,0000,0000,,This versatility makes carbon the center piece Dialogue: 0,0:04:59.09,0:05:01.13,Default,,0000,0000,0000,,in the moleculary machinery of life. Dialogue: 0,0:05:03.52,0:05:07.74,Default,,0000,0000,0000,,And the same carbon compounds that we use\Nhave been found far from Earth, Dialogue: 0,0:05:08.74,0:05:10.09,Default,,0000,0000,0000,,clinging to meteorites Dialogue: 0,0:05:12.36,0:05:15.62,Default,,0000,0000,0000,,and floating in far off \Nclouds of cosmic dust. Dialogue: 0,0:05:18.67,0:05:23.52,Default,,0000,0000,0000,,The building blocks of life drifting \Nlike snow through the universe. Dialogue: 0,0:05:30.16,0:05:34.92,Default,,0000,0000,0000,,And if alien life has selected other carbon\Ncompounds for the biochemistry, Dialogue: 0,0:05:35.78,0:05:37.41,Default,,0000,0000,0000,,they will have plenty to choose from. Dialogue: 0,0:05:42.09,0:05:47.57,Default,,0000,0000,0000,,Scientists recently identified over a \Nmillion possible alternatives to DNA: Dialogue: 0,0:05:48.59,0:05:49.86,Default,,0000,0000,0000,,all carbon based. Dialogue: 0,0:05:57.95,0:06:00.80,Default,,0000,0000,0000,,If we ever discover other \Ncarbon based life forms, Dialogue: 0,0:06:01.65,0:06:03.97,Default,,0000,0000,0000,,we will be fundamentally related. Dialogue: 0,0:06:07.93,0:06:09.84,Default,,0000,0000,0000,,They will be our cosmic brother. Dialogue: 0,0:06:13.30,0:06:15.14,Default,,0000,0000,0000,,But would they look anything like us? Dialogue: 0,0:06:19.98,0:06:21.74,Default,,0000,0000,0000,,If they hail from Earth like planets, Dialogue: 0,0:06:22.86,0:06:24.47,Default,,0000,0000,0000,,we could share even more in common, Dialogue: 0,0:06:25.06,0:06:26.42,Default,,0000,0000,0000,,than just our biochemistry. Dialogue: 0,0:06:29.83,0:06:33.10,Default,,0000,0000,0000,,What would life be like in another\Nplanets, if its evolved? Dialogue: 0,0:06:33.57,0:06:36.25,Default,,0000,0000,0000,,Would it be like, the world \Ntoday here on Earth? Dialogue: 0,0:06:37.48,0:06:38.74,Default,,0000,0000,0000,,Or would be completely different? Dialogue: 0,0:06:40.50,0:06:42.12,Default,,0000,0000,0000,,There are those, who argue that Dialogue: 0,0:06:42.46,0:06:44.47,Default,,0000,0000,0000,,from the argument of convergent evolution, Dialogue: 0,0:06:44.80,0:06:50.21,Default,,0000,0000,0000,,if conditions on other planets are similar to here, then we will see very similar life forms; Dialogue: 0,0:06:54.73,0:06:58.24,Default,,0000,0000,0000,,animal and plant-like organisms, that look very familiar. Dialogue: 0,0:07:12.24,0:07:16.62,Default,,0000,0000,0000,,On Earth, certain features like eyesight, echo-location and flight Dialogue: 0,0:07:16.63,0:07:20.81,Default,,0000,0000,0000,,have evolved multiple times, independently, in different species. Dialogue: 0,0:07:23.65,0:07:28.98,Default,,0000,0000,0000,,This process of convergent evolution could extend to alien planets like Earth, Dialogue: 0,0:07:29.22,0:07:32.24,Default,,0000,0000,0000,,where creatures share similar environmental pressures. Dialogue: 0,0:07:35.63,0:07:40.37,Default,,0000,0000,0000,,It's no guarantee, but there could be certain universalities of life; Dialogue: 0,0:07:44.34,0:07:48.34,Default,,0000,0000,0000,,the greatest hits of evolution on repeat across the Universe. Dialogue: 0,0:07:58.04,0:08:02.04,Default,,0000,0000,0000,,Each feature would be a tune to its local environment. Dialogue: 0,0:08:02.80,0:08:06.80,Default,,0000,0000,0000,,Dimly lit planets would produce huge eyes to suck in extra light, like nocturnal mammals.