Arguing that creating lives has positive value and that therefore it is good to create them quickly leads into Repugnant Conclusion territory.
Well, repugnant != incorrect, but even if I were to accept that end-state as undesirable (and I actually do), the limit doesn't describe the current margin. It's perfectly consistent to believe that we shouldn't sacrifice great lives to have more mediocre lives while believing we can correctly make additional mediocre lives while keeping the great ones.
"More animals than now" is a different position than "as many animals as possible, even if we have to crowd out humans and happier animals". I'll argue for the first, not for the second.
If it's worth saying, but not worth its own post, then it goes here.
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