Really depends upon the scope of "us", no? For small values of "us", some bad error handling or a dodgy sensor can be fatal. For larger values of "us", small

Really depends upon the scope of "us", no? For small values of "us", some bad error handling or a dodgy sensor can be fatal. For larger values of "us", small amounts of "us" debris are so much stochastic noise. MORAL: strive to be the one who gets to manage the definition of "us".