I think it is pretty obvious that if Bach lived another 10 years (or days), he would have written music that nobody would ever come up with (remember, human exi

I think it is pretty obvious that if Bach lived another 10 years (or days), he would have written music that nobody would ever come up with (remember, human existence will not be infinite). With Turing, it's entirely possible that he could have come up with a novel way of looking at things, or an invention, which we have not achieved today. Thus, even if at some point, all technical discoveries have been made that would have been made in Turing's natural lifespan, we would be much farther along at any point in time if we had those contributions, and our way of looking at our field might be richer.