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You don't have to be an "extinction apologist" or whatever to think that we'll probably solve the problem before we go from 7 BILLION people to not enough humans for healthy genetic diversity. We've rescued animal species from extinction with populations of <100.
>that we'll probably solve the problem before we go from 7 BILLION people to not enough humans for This just goes to show how little you've ever considered the problem. I don't think you're stupid (probably), so let me get you started... It's not "from 7 billion to not enough", because right now we don't have 7 billion. We only have the generation(s) that are from 0 to 40 years old... everyone older doesn't even coun…
But humanity almost certainly won't? Why? Because there are sub-groups within humanity who have much higher fertility rates. As long as there are groups of people which are large enough to have viable genetic diversity, and recognise that a high birth rate is crucial for the continued existence of their culture, there will be humans.
Realistically, that means the decline of western liberal ideas and the growth of more extreme religious groups.