That's not an ad hominem attack. Ad hominem would be "you're a crackpot, so everyone should ignore you". That might be true, but it's not the claim I made. The

That's not an ad hominem attack. Ad hominem would be "you're a crackpot, so everyone should ignore you". That might be true, but it's not the claim I made. The claim I made is that you should learn some physics, and your response only serves to reinforce that. And a very large upper bound on exponential growth is still an upper bound. It won't last forever. Once you accept that, you are ready to face the questions of when and how it should end to minimize the damage done by its end.