A vaccine-related blog post from the guy I mentioned in the Open thread.
His point is that antigens, in nature, don’t just appear all by themselves; they’re associated with a pathogen. Our immune system recognises coronavirus spike proteins not because those proteins themselves are a problem, but because they’re attached to something that is a problem. And our immune system responds by destroying that thing.
So. The vaccine causes your own body to manufacture these spike proteins - much as a virus would - and that means, presumably, that the cells “malfunctioning” in this way will be targeted for cell death and phagocytosis.
Is this a problem? Maybe it isn’t. It happens all the time, of course. But who knows? Does anybody care? Either way, I think his stance is a reasonable one: wait and see if the guinea-pigs develop problems.