Sure, but there are plenty of downsides to this. I've always been fascinated by and impressed with NASA's software methodologies, but they are neither cheap no

Sure, but there are plenty of downsides to this. I've always been fascinated by and impressed with NASA's software methodologies, but they are neither cheap nor fast. I'm not sure it's something to aspire to as much as one extreme on a continuum of code quality vs. code cost. I would suggest that it would not be in Google's nor in most companies' interest to do anything like this. Where a company falls on this line depends on their organization's size, purpose, and business model.