3 ms·

It's a copypasta. OP didn't make up the number 2 but I'm guessing it comes down to 2 being a tolerable number to most people.

• yoube 7y ago
  I mean, it's literally the replacement population. 2 parents die, 2 children remain.
  • adrianN 7y ago
    Technically you need a little more than 2 because people die without having children occasionally.
• deleted 7y ago
  [deleted]