The technology suggests it might one day be possible to use a cell reprogrammed in this way to create an entire person, in the same way that an implanted embryo can develop into a person. Given this possibility, will people who believe embryos have the same moral value as persons and thus should not be used for experimentation believe that reprogrammed cells also have the same moral value as persons and thus also should not be used for experimentation? There is a substantial difference between an embryo and and embryonic stem cell, but not everyone who favors the protection of embryos thinks this difference is dispositive of the question.

Until this proves to be the best, most effective way, both should be pursued.

What about ethical? Are there even such things as “ethical concerns” in medicine? This is bad news for all those ESTC fetishists.

Still, should we stop research using the other method? Of course not. Until this proves to be the best, most effective way, both should be pursued.

And every one of the scientists in these teams agrees with that viewpoint.