Take the crocodile, for example, my favorite animal. There are 23 species. Seventeen of those species are rare or endangered. They're on the way out, no matter what anyone does or says, you know.

The more a species is rare
the more we like and protect it...
So what about humans?

I am no longer a rare breed, I am an endangered species

We know there must be new physics. For example, we cannot explain what dark matter is.

These times are much franker. For example, in the first movie we have to assume that the daughter and the son-in-law who got married were lovers before they got married. That could never have been in the '50s.

Take opera for example - to go to the opera you have to dress up in a tuxedo and pay lots of money.