in addition to what logicallee said, it's common for inexperienced programmers to (poorly) "re-invent" concepts that were discovered in the past by those "smart old people". This is caused by a combination of factors, and one of them is the belief that one can solve a problem single-handedly without studying the fundamentals and previous strategies. Ignoring the work of the masters is a good way to start from scratch and do worse.
Yep! Also, reinventing what existed before (intentionally or by accident) can give you a better appreciation for what was invented in the oast and might be the best way of finding out about it (if you don't know the name, for example).
