[TheOldLady]

Egad. I can't imagine the chemicals and hormones they'd have to use to grow meat in a lab. How the heck do you grow hamburger anyway? Do they have to use nanobots to grind it up as it's growing?

This is just the yickiest thing I've heard of in a long time! Yick!

[SunkenCiv]

The cells that will grow are the meat; I’ll make a wild guess and say the marbling comes from the fat the cells exude when their diet gets too rich. But maybe it’s 100% lean, dunno. Then the cells were gathered up and pattied, then cooked. :’)