But why aren't there enough embryos for testing? How many embryos (human beings) are produced by fertility clinics, and how many of those will ever be implanted in a womb? I have heard that it is standard practice to produce 6 to 14 embryos per patient, and emplant maybe 2 or 3. The rest get frozen, or maybe some are discarded immediately and some frozen. About a quarter of those frozen will not survive freezing and thawing, and since the surplus of frozen embryos made by this process is over a hundred thousand, there are no takers for the majority of them, anyway.
I think we should ban fertility clinics from creating life that will be discarded. Implant all embryos immediately in a womb, or don't make them!
Where will the embryos come from for medical procedures (not just experimentation but hospital use) if this pans out?