Same. I don't remember most things including my childhood. I have to relearn everything all the time just in a few months time. Maths, code, etc if I don't use it in 1 or more month, I have to relearn it though its always easier to relearn it. Comparing myself to others its extreme. What I find is the process of constantly relearning instead of relying on memories (which are in a way similar to assumptions) can lead to different ideas (often unique) than other people because everything even basic concepts is a open question. This however is tortuous in job interviews when people ask about problems solved in previous work or about a concept so there are trade offs.