

Some newer radiation hardened stuff is 10x larger than that, older gear even more so. But that just reduces the risk, not sure it’s possible to negate it entirely.
An easier way is to just include more CPUs as part of the system, run them in lockstep, then compare the results by majority rule. If 2/3 CPUs say one answer and the third says something else, you discard the result of the third and go with the other CPUs.





One estimate I can see of the total cumulative human population is about 100 billion people, if there was just a 1% chance of becoming a ghost when you die there should still be about a billion of them on Earth currently.
Imagine if 1 in 9 people on Earth was actually a ghost.