" why does anyone BELIEVE technology is infallible?"

I don't think anyone does actually believe it, certainly not the ones who create and maintain it (such as myself). However the technology includes measures to limit the effects of hidden faults, and as long as it continues to work without problems, users will regard the risks as acceptably contained.

"One can eliminate human errors via software... but one may not eliminate human errors embedded in software ;-) And one CAN eliminate humans due to errors in software."