Two of my sons were discussing the new version of a game. One said, "The only real difference is that it adds jiggle physics."
I raised my head. "Jiggle physics? Is that a real thing, that game designers talk about?" As I spoke, I already knew the answer. Of course it is.
Yes, my sons confirmed. "It's really complicated and hard to do right," one said.
And indeed a quick search showed that it is a huge topic, with hundreds of thousands of hits. Here is an introduction.
So we have these amazing machines that can do millions of calculations per second, and this incredible technology of 3D rendering that can tell any story in stunning detail, and the height of the art is making breasts bounce convincingly.