Also, if I had a nickel for every time this link had been relevant, I'd have two nickels. Which isn't a lot, but it's weird that it's happened twice, right!?
The AI part is a good answer. It used to take someone quite a long time to remove the background from a photograph pixel-by-pixel, but now it takes an AI a few seconds. Give it 400 years and AI will be mind-blowing.
A hexagonal bear