alt Hacker NewsThis is a fascinating post but I don't believe it reflects (most) human memory development, which has a pronounced forgetting phase called 'childhood amnesia'. When your kid starts to talk, it's startling what a two-year-old can remember and can tell you about. And it's kinda heartbreaking when they're 4-5 and you realise that those early memories have faded.
Note that your memories might not be accurate, as your brain may have skightly altered them over the years, over and over. There is generally no way for yourself to know (except for some external proof).
This is not just the case for early childhood memories, but for anything - the more time passes, the less accurate. It's even possible to have completely "made-up" memories, perceived as 100% real, e.g. through suggestive questioning in therapy.