Do you ever wonder why that comic only goes back 22,000 years? If it had gone back just a little more, say 25,000 years (a rounder number), it would be much mo

Do you ever wonder why that comic only goes back 22,000 years? If it had gone back just a little more, say 25,000 years (a rounder number), it would be much more complicated to explain what happened. If it had gone back 400,000 years, which is basically nothing in geological scales, it would bring up some really interesting questions.