It’s not just a fat or muscle thing. Those both contribute of course; fat insulates and muscle produces more heat. But the real player is the surface area to volume ratio.
A bigger person has a lot more volume than they have a bigger surface area, and since heat is lost through the skin this has a major impact.
I agree that, if the detection is accurate and correct, it could be produced through non-biological processes, but, on earth, the molecule in question is known to be produced solely by biological processes. So when you say “easily”, I must disagree.
This is very preliminary data, and we shouldn’t get overexcited about the possible implications of this discovery, but I think it’s fascinating.
Get your bowels empty in the days leading up to it. So don’t eat. Anything. 2 days before you can relieve yourself start eating small amounts of protein.
Or, better yet, don’t even try to do this. You’re very unlikely to succeed and therefore your effort is going into preventing an inevitable situation rather than figuring out how to deal with the inevitable problem once it arrives.
That isn’t true though. Most convicted felons can’t vote, but they can run for office.