I think basically every single top level comment has zero understanding of what a short time 20 years actually is.

I also expect almost everything that is acceptable today will also still be in 20 years, including nearly every example suggested in this discussion.

The world simply does not change that fast as a general rule.

In 2003, you could still smoke indoors in many states/countries who have since made it illegal.

In 2003, cannabis and homosexuality was illegal in many more countries than it is now.

In 2003, there were many more TV shows/movies with ingrained sexism than there are now.

In 2003, having hundreds of "online friends" meant you were a social recluse who only spent time on IRC/MSN messenger.

In 2003, if you met a significant other online, you came up with an elaborate story to hide it.

In 2003, most people had a paper map of the streets folded up in their glove compartment.

In 2003, people still remembered phone numbers, phones all had removable batteries, every phone company had a different OS/charging cable, and no phone had a screen >6 inches big.

(cheating a little here, but I would be remiss not to mention this) In 2000, it wasn't illegal to bring a full water bottle into a plane.