Apparently frozen embryos have a "better than 95% chance of surviving the thawing process" -- or looking at it the other way, they have up to a 5% chance of dyi

Apparently frozen embryos have a "better than 95% chance of surviving the thawing process" -- or looking at it the other way, they have up to a 5% chance of dying [1] -- before we even consider whether they are successfully implanted. If we accept the premise that they are human beings, would we tolerate any other action parents might electively take that put their child at a 1 in 20 chance of dying? And that doesn't count the fact that eggs/embryos are screened before freezing, and less viable, or just genetically inferior (e.g. if the egg has inherited one of the parents' genetic disorder) eggs are discarding even before freezing. And then there's the chance that an implanted embryo survives to birth. That's apparently about 40% -- and amazingly, worse among non-frozen embryos. So there's a better-than-50:50 chance you're killing a "human being" by engaging in in-vitro fertilization at all. [2] [1] https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/freezing-embryos [2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8489809/