And if we just master nuclear fusion, we can solve pretty much all of our problems! The issue, of course, is that we're not going to master nuclear fusion in t

And if we just master nuclear fusion, we can solve pretty much all of our problems! The issue, of course, is that we're not going to master nuclear fusion in the near future, just as we're not going to all switch to eating plants now. (And I say this as someone who's gone from eating beef as my main source of protein to something like 50% fish/20% chicken/30% veggie meals.) Arguments that take the form of "If we just do <thing that there is no plausible chance that we will do>, that would solve the problem!" aren't helpful. Inasmuch as they discourage people from researching plausible but less extreme solutions, they're harmful. People are going to keep eating meat, so it's a good idea to research ways to reduce the carbon footprint of raising it and getting it to them.