0:00:06.825,0:00:10.825 Computers, I've loved them since [br]I've been able to afford to have my own, 0:00:11.164,0:00:15.144 back in the beginning of the[br]modern home computer era - in the 1980s. 0:00:15.720,0:00:19.430 And I've owned a large number[br]of different kinds of computers 0:00:19.581,0:00:23.771 and I've expressed, publicly, loyalty[br]to this kind or that kind, 0:00:23.951,0:00:26.855 but recently my mind has turned,[br]as many people's have, 0:00:27.105,0:00:30.835 to this whole business of free software. 0:00:32.070,0:00:35.070 If you have, I don't know,[br]plumbing in your house, 0:00:35.428,0:00:37.568 it may be, that you [br]don't understand it. 0:00:37.760,0:00:40.330 But you may have a friend[br]who does and they may suggest 0:00:40.431,0:00:42.578 you move a pipe here, or[br]a stopcock there 0:00:42.809,0:00:44.729 or a valve somewhere else 0:00:44.944,0:00:47.664 and you're not breaking the law[br]by doing that, are you? 0:00:47.774,0:00:50.284 Because it's your house[br]and you own the plumbing. 0:00:50.563,0:00:52.323 You can't do that [br]with your computer. 0:00:52.431,0:00:55.641 You can't actually really fiddle [br]with your operating system, 0:00:55.740,0:00:59.391 And you certainly can't share any ideas [br]you have about your operating system 0:00:59.391,0:01:00.781 with other people. 0:01:00.892,0:01:06.364 Because Apple and Microsoft, who run the [br]two most popular operating systems, 0:01:06.471,0:01:10.051 are very firm about the fact that they [br]own that. 0:01:10.176,0:01:13.506 And no one else can have anything to do [br]with it. 0:01:13.863,0:01:16.413 Now this may seem natural to you, [br]why shouldn't they? 0:01:16.616,0:01:17.836 But actually, 0:01:17.993,0:01:20.053 why can't you do with it what you like? 0:01:20.053,0:01:22.883 And why can't the community, at large, 0:01:22.883,0:01:26.283 alter, and improve, and share? 0:01:26.283,0:01:28.798 That's how science works, after all. 0:01:28.914,0:01:32.914 All knowledge is free and all knowledge [br]is shared in good science 0:01:32.938,0:01:36.798 If it isn't, it's bad science and it's a [br]kind of tyranny 0:01:36.961,0:01:40.161 And I'm here, as it were, simply to [br]remind you 0:01:40.216,0:01:46.980 that GNU and Linux are the twin pillars[br]of the free software community 0:01:47.127,0:01:50.301 People who believe -and this is the [br]important part- 0:01:50.301,0:01:55.557 that software should be free, that [br]the using community should be allowed 0:01:55.557,0:02:00.198 to adapt it and adopt it, to change it,[br]to improve it, 0:02:00.397,0:02:03.180 to spread those improvements around [br]the community 0:02:03.223,0:02:05.768 like science.[br]That's basically what it's saying 0:02:05.768,0:02:09.398 In the same way that good scientists [br]share everything, and all knowledge is 0:02:09.398,0:02:13.398 open and free, so it should be with [br]an operating system. 0:02:20.999,0:02:30.659 [Trade-free means good practice]