Where is functional "good?" Other than in abstract math or FP advocates' heads? :D If it had been any good, it would have been used on a pretty large scale... w

Where is functional "good?" Other than in abstract math or FP advocates' heads? :D If it had been any good, it would have been used on a pretty large scale... we live in a pretty large world and someone would have figured it out... and then the others would have fallowed suit...