Comment by mlyle

Again, anyone who cracks a decent success rate can basically print money. Unfortunately, despite lots of efforts in this area, we have not been able to get the clinical success rate up.

It's pretty low effort to jeer from the outside and say "do better" for an industry that's been trying so many approaches to do so, without any ideas yourself.

The techniques have gotten a lot more sophisticated, but unfortunately a lot of the low hanging, "easy" fruit have been used up. Biology is hard.