whoops, you do have a very strong case here, however, truth be told. Nature has a way of revenging. The consequences sure abound, and this is something inevitable. The cases of cancer and chronic diseases have been on the rise than ever before, possibly as a result of increased interaction with products of unnatural source (just a perspective).
No doubt, virtually everything around us are almost not natural.
Knowledge is passed on from one generation to the other and most times written down for the next generation to develop on. A man with an idea of solving a particular problem might need someone smarter than him to complete the job. This is where human genetics comes into play as well. People are born with different IQ.
To me, defeating aging is like a mirage, though the possibilities are there, however, it will come with a great price and definitely with an unknown consequences. Probably not in my time. haha. You could imagine if we had clones humans working around us. Everything has a price.
So until we reach that age, I don't think there's any reason for the priests to be alarmed
the likes of Methuselah, lol.