actually now they can grow organs in a petri dish. i would love to do this as a job when im older but i have no idea what classes to take or how to get a job in it. if anyone can help me i would appreciate it. thanx!(; i think that the growing of organs in a petri dish could help out more than this powder stuff. it would save more lives for sure too. o and im only 15 but im very interested in this stuff.