I talked to a mechanical engineer the other day, and he said "Science and physics isn't all that useful." I'm curious what a good response to that would be? He said when he works on his projects, the "big picture" is the project, and Science and other aspects are only small details or parts to the whole. He said physics ignores very important details when he works on his projects, such as "friction", etc. He said if you get lost in the details like physics you'll miss the forest from the trees. He said, "We'll leave theories and hypotheses to the physicists. I'm a no nonsense type of guy who likes to be practical. If something's not useful and is 'theories', I don't care." Any ideas for comebacks?