I agree with much of what you're saying, even though I don't think the science strongly supports it (yet). A lot of cool stuff going on right now.

I want to be clear though: there is certainly evidence that very high blood sugar causes significant damage, sometimes permanent, I'm not contesting that. How high "very high" is varies, and as far as I know doesn't really happen in people who aren't diabetic. All I'm saying is I don't think blood sugar spikes are bad for non-diabetics, but they certainly are for diabetics.