> The problem with this argument is that this is effectively happening every time you fall asleep or get knocked out

I think that's quite a huge assertion to make, personally.

> In a very real sense, you are dying every day

I don't agree with this view, it would take some pretty hard science there to change my mind, to show that sleep and death are really equivalent, and I don't think we have that given the definition of consciousness is a little fuzzy in the first place.

This seems to be more a philosophical conjecture than any sort of hard fact.