Roughly every 7 years for most of the body, major organs tend to take longer, more like 10. Your brain replaces cells at a way slower rate, you’ll only Theseus your brain about 80% at best if you live a long healthy life.

Not under the current systems, exploitation is built in, no way to avoid it if you directly engage by starting a business. You’re missing the point though, this meme is about scalpers, people who buy as much as possible of a high demand item to sell it higher than its legitimate market value. When the profit off the product exceeds costs to provide the product you’re exploiting people and scapers attempt to maximize that exploitation.

Taking advantage of you excess resources to manipulate people into give you theirs, is the problem.

Tom Paris tells the Doctor holograms are just light and aren’t real matter, the Doctor turns and slaps Tom.

A calorie is the amount of heat needed to raise the temperature one kg of water by 1°C, so uranium has quite a few, hard to digest though.

Edit: I was curious so I looked it up, 1 gram of uranium has 20 billion calories