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Re:Man donated blood every week for 60 years and helped save... by firethief on Saturday May 12, 2018 @03:29PM (#17055605)
That's an interesting hypothetical, but there's no way someone could donate blood "full time" to earn a living wage. There's an upper bound to how fast one can produce blood, and a high proportion of people are capable of doing it, so each person can represent at most a miniscule proportion of total supply. It would be like making a career out of football if almost everyone were equally fit and talented and lots of people played all the time for fun and there were no NFL.
Re:Man donated blood every week for 60 years and helped save... by Klathmon on Saturday May 12, 2018 @03:44PM (#17055667)
But what if we could we increase the amount of blood someone can donate. I know something roughly similar is done when donating marrow.

What if we could augment humans to be able to produce absurd amounts of blood and make it so it was a full-time job for those people?

If we could increase the amount of blood someone could donate by 100x, would it start to become cheaper to just hire full-time donors rather than deal with all the expenses around donations? And would it be ethical even if the donors we're fully consenting and paid a good salary?

Like you said, its a interesting hypothetical to say the least!