..which is the real question you should be asking. How do 'older' engineers stay upto date and avoid being outcompeted by their 'younger' peers. Not the quest

..which is the real question you should be asking. How do 'older' engineers stay upto date and avoid being outcompeted by their 'younger' peers. Not the question you asked which even if you got answers you won't know if they're fundamentally useful till you're older.