Searching through your brain can sometimes take longer than machine, but not often.
I'm 70 and have yet to come across anything remotely resembling a disadvantage.
Hello! To be honest, I don't see any reason to overload yourself with the information. There is too much information now and we don't have to memorise it. If we have a question, we can look at this website and find the answer. The internet keeps a lot of our knowledge and this is a reliable system