I just have to write this one down:
It was mentioned in one of my classes the price of tuna (I really like sashimi) and I’m wondering about the viability of in vitro fish. Already under water, so you could put the nutrients in the water, some sort of fake spine to move back and forth against the water to provide “exercise”? The fat deposition of course will be a problem. But you only need to compete with about 120$ a pound, and not with 4$ a pound.