" I should prioritize my own over the rest of the world" It feels like you're suggesting that a job such as SpaceX is automatically beneficial to the rest of t

" I should prioritize my own over the rest of the world" It feels like you're suggesting that a job such as SpaceX is automatically beneficial to the rest of the world. I suggest that you are assuming too much. Could SpaceX usher in a golden age of transport and colonisation? Sure. It might also fail. I suggest that you are also assuming too much by suggesting that parenting your children is selfish and (implicitly) doesn't benefit the world. It's possibly that SpaceX takes us all to Mars and none of the kids/descendants of its employees were ever going to achieve world changing things without their mum/dad being around more. It's also possible that some of those kids would have achieved greatness if only they had a more present mum/dad in their life. You can't bail the future down, it's made of unrealised possibilities that we make real with our choices. Those choices are either implicit or explicit and we have no way of knowing what will actually happen.