Anything that takes 200 million years is not "suddenly"
“Once on a star in a remote corner of the universe, some clever animals invented knowledge, but then the star grew cold, and the clever animals had to die. One might invent such a fable, and still not sufficiently have illustrated, how X and Y, how aimless and arbitrary, the human intellect appears in nature. There have been eternities when it did not exist, and when it is gone, nothing will have happened.”
- The F-Meister
As you can see, my own memory is already eroding. Sad.