> 10 computers a year experience this bit flip
That's wildly more than I would have naively expected to experience a specific bit-flip. Wow!
~800 bit flips per year per computer. 2 billion computers with 800 bit flips each is 1,600,000,000,000 (one point six trillion) bit flips.
Big numbers are crazy.
Scale makes the uncommon common. Remember kids, if she's one in a million that means there are 11 of her in Ohio alone.