all well, but that 3rd one highly depends on context. If I have an application for collecting/analysing data that is going to be used to publish papers and what

all well, but that 3rd one highly depends on context. If I have an application for collecting/analysing data that is going to be used to publish papers and whatnot, it is absolutely critical the algorythms I write are ok no matter what. If they are not, it's time to go berserk (as in the 1st one). Ignoring it would be the worst I can do at that point.