When I’m unhappy, I feel like I’m doing life wrong. I’d rather be happy. But is happiness the point of life, or is there more to it? If I pursue happiness, mine first then for those around me, is that selfish? But if there’s a bigger purpose, then what about people with Alzheimer’s or dementia who can’t recall recent experiences or make plans?
Not even that. It’s not like you’ve failed at life if you don’t have kids. You just haven’t spread your genetic information. Saying that its your purpose to spread them implies it’s the genes purpose to be spread. Genes simply are, they don’t have a purpose just like you don’t; evolution has just given organisms behaviors and mechanisms that make it very likely that they will be regardless of that lack of purpose.
That’s a valid way of looking at it, too.
Realistically, the concept of “purpose” doesn’t exist in the universe outside of our imagination any more than justice, beauty, or morality. Things just are what they are and follow the laws of physics.
If we’re making it all up as we go along, there aren’t any wrong answers. I claim the purpose of living things is to reproduce, but it’s true that living things reproduce because that’s what living things do (otherwise we’d have run out of them by now). Kind of a chicken/egg thing there.