I don't actually, evolution theory is just the most accepted theory for why were here, and most people seem to believe it, so I make my arguments based on the hypothetical that it's true. I don't know if it's true and I don't care if it's true, because that has no bearing on what decisions I will make in life.
Yeah and one day the sun is going to explode and a wipe out everyone on the planet anyways, so all the procreation amounts to nothing still, it just depends on how far into the future you are looking.
I guess you'll say next that by then we'll have perfected space travel and will have populated other galaxies, won't matter because one day there will be a "universe death" and we'll all still get wiped out.
I guess you'll say next that we'll be populating the multiverse through some technology of sorts lol. On and on it goes, at the end of the day, everything will come to an end, and all the generations that came through procreation will be wiped out eventually. So even procreation doesn't matter in the grand scheme, everybody will die at some point.
What you're doing is looking for a simple and easy goal to latch onto to give your life meaning and to give you purpose.
I don't need shit like that, I'm just going to focus on enjoying my life. You can do whatever you want.
1. I think you need to spend some time googling definitions and less time making arguments, nothing I said went against nihilism. My point is there is no purpose to anything, BUT if were going by the concept of "legacy", men like Tesla and Newton ironically have a greater legacy than that of most people that reproduced. They will always be remembered.
2. Who decided what is the core "requirement" of being human. You seem to be using circular reasoning combined with a strawman argument. You've already have a presupposition that you are right and then you are asserting that presuppostion as evidence of you being right

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There's no such thing as blinded by nihilism, nihilism doesn't dictate that you have to do anything. You are using circular reasoning. There is nothing that one ought to do, you just can't accept that fact because it's a scary reality since you can't cling to any guidance and you have to make decisions for yourself.