[Terr_]

> If your offspring does not survive to reproduce

First you declared genes had no evolutionary pressure on longevity after children existed... but now you're amending it to grand-children existing?

Well, what about great-grandchildren? How many more times must you be forced to move the goalposts before realizing that the logic behind them is simply wrong?

You can't just ignore stuff like kin-selection, which we've known about for over a hundred years already.

[alexschnapp]

This is just assuming that the offspring survives just like the parent and reproduces.

If the offspring requires parenting, the parent, once an offspring, also required parenting and so on.

This is not moving the goalpost, it’s doing the similar things adapted in some ways for the environment every generation.

I assumed you were talking about humans. For salmon, the definition of a successful reproductive cycle is simply reproducing. For humans, it takes longer and requires parenting. But genes don’t get selected away when it’s passed on to the next generation.