People who invented Computer Science did so for others not to reinvent it again. People who did not studied it are more prone to reinventing wheel. Good take on

People who invented Computer Science did so for others not to reinvent it again. People who did not studied it are more prone to reinventing wheel. Good take on it has Bruce Schneier it is same as in crypto: "Regularly, someone from outside cryptography -- who has no idea how crypto works -- pops up and says "hey, I can solve their problems." Invariably, they make some trivial encryption scheme because they don't know better."