If someone from the 1950s suddenly appeared, what would be the most difficult thing to explain about life today?

"Bus? No we bulldozed hundreds of neighborhoods to build highways so now everyone has to have a car"

Depends where they appeared

And we had a pretty great black president.

I knew that would be the obvious joke but it's not like that was unfathomable in the fifties. Desegregation was obviously where the world was headed and I'm sure everyone was expecting (or dreading) modern racial relations.