Preventing errors: Looking for ugly »

Kevin Kelly:

Preventing errors within extremely complicated technological systems is often elusive. The more complex the system, the more complex the pattern of error. But a curious thing happens in systems that are kept relatively error free: as major errors are prevented, it gets more difficult to forecast future major errors — because so few happen! In these kind of mission-critical systems the genesis profile of a major failure may be unknown because major failures are so rare.