[jacquesm]

Faster computers do not equate to magically better programs and/or programmer capabilities. The computers from Feynmans days could do finite element analysis and structural simulation on grids fine enough for just about all engineering work. It's the execution details that get you (such as an O-ring...). And nobody simulates the execution in a meaningful way simply because there isn't enough data to start your simulations with. These are human failures first, process failures second.