James Burke: Connections, Episodes 1-10 (1978) [video]
I've always been fascinated by his follow up series "the day the universe changed".  He points out that as our beliefs and understandings shift, our universally perceived reality changes.<p>He demonstrates this with a witch burning three hundred years ago. Those people believed that everything the felt and did was absolutely justified - if not required - by the universe they inhabited.<p>It has always made me wonder what a future society will not be able to relate to how we live now.  Personally, I suspect eating meat will be off the table, as it were. (And I say this as a carnivore with a tin of bacon fat in the fridge.)<p>When informing people whom they should vote for (I can be annoying like that) I try to get them to vote for someone that can inch us to the future they want to see.<p>Not surprisingly, universal healthcare, decreased poverty and things that taste like bacon but aren't really bacon are all things people seem to expect in 1000 years.