> your kids might do it or their children could finally make it so you could say that children are a good long term investment. This has some teleological prob

> your kids might do it or their children could finally make it so you could say that children are a good long term investment. This has some teleological problems. When you make an important breakthrough, there are innumerable factors which contributed to the breakthrough happening. It feels tempting to say "if I hadn't been born, this breakthrough wouldn't have happened". But to the extent that's true, it's also true that if you hadn't read a certain book, or had a certain teacher in the third grade, the breakthrough wouldn't have happened. It's also often just false though: if you had never existed, someone else who read the book would have made the breakthrough - probably not too long after! (see steam-engine time) By this reasoning, writing books, being a teacher or any other number of things are better long term investments than physically creating a child.