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Huge news! Very cool to see. Stem cells are wild, can’t wait to keep seeing all the awesome applications.
I am horrified and genuinely intrigued all at once by this.
I don’t understand how it is more ethical to create an embryo from a stem cell than to create one from a sperm and egg. Both are viable, neither is a person. How are they different?
(Keeping the stem cell version in vitro past the the age when it would need to implant isn’t really a solution/distinction because we can do the same thing with a sperm-and-egg version.)