Most people you'd want to know stuff about later on are too busy to spend much time on 'self recording'. But I'm 100% sure you'll be able to look up what Aunt Gertha ate on the night of the 22nd of October 2017 and whose dog was briefly lost that evening.
Actually, I was thinking of a time when such a thing might become automatic
Remember when your uncle would lecture you on the benefits of keeping an account of where you spent your pocket money? Well, that's now done automatically because of credit cards.
