Ants are more like the parts of an animal than entities on their own. They are mobile cells, circulating through a dense connective tissue of other a… - Lewis Thomas

I agree that you might clone some people who would look amazingly like their parental cell donors, but the odds are that they’d be almost as different as you or me, and certainly more different than any of today’s identical twins.

I have always had a bad memory, as far back as I can remember.

Mistakes are at the very base of human thought, embedded there, feeding the structure like root nodules. If we were not provided with the knack of being wrong, we could never get anything useful done. We think our way along by choosing between right and wrong alternatives, and the wrong choices have to be made as frequently as the right ones.

We get along in life this way. We are built to make mistakes, coded for error. We learn, as we say, by "trial and error." Why do we always say that? Why not "trial and rightness" or "trial and triumph"? The old phrase puts it that way because that is, in real life, the way it is done.