This is a wonderful video. It is so encouraging. It is why, even when faced with the ghastly results of man's lust for power and manipulation and stealing wealth to end in war, murder, and famine.... it is hard NOT to stop and say "the future looks more bright than tinged with death." Lots of ugly stuff on the horizon for sure, and lots of historical reasons to be gloomy, but when you look at the amazing progress humanity has made just in the last 250 years or so, I can at least say "well, maybe there is some hope here."