— We guarantee nothing, said the official, except the dinosaurs.

bradbury almost reaches the sublime with his ending but the framing device of the election is too tempting and he crams that in too; but there's an extraordinary paragraph where eckels exits the time machine, stands there, and "drinks in the oddness" of everything, the air smells slightly off, he feels as though someone's blowing a dog whistle somewhere - this is EXACTLY the kind of thing that ought to happen as the result of stepping on a butterfly - but yeah then he steps back from that

Yeah I did listen, I got the bit about the ridiculousness of the whole safari idea but didn't catch anything about chaos theory - maybe i missed it. That's the trouble with listening to radio on the internet, I always go "ooh since I'm on the internet I'll just check out this thing, I can read and listen at the same time, right?" Wrong, obviously. Will listen harder next time!