>>13865901>Like could you produce fat indefinitely as long as you're on a calorie surplus and don't die?You'd die
If we are in magic futurism land and you can unclog your arteries every week with robots and artery/vein stents to keep them from collapsing under weight then the next problem would probably be the weight of the fat against your lungs/diaphragm which eventually would suffocate you. Or the weight of the fat pressing against tissue causing reduced blood flow, making the tissue necrotic.
Maybe you could overcome that by living in a swimming pool. But the higher increase in volume vs surface area of your body would heat up your insides like crazy so it would have to be colder water.
The endocrine system would have to be artificially maintained because of organ failure.
The last limiting factor I think would be how much your skin can stretch before the fat literally pops through it. Not sure when that would happen but preggo women can stretch quite a bit.
I'd say all things considered maybe you could make a human get as fat as an elephant seal, so several thousands of pounds.