Think back to the earliest memory you have. How old were you? Three, maybe 2? Younger? If it’s the latter, you’re not alone. Problem is, you’re probably imagining it.

Most brain experts agree we’re not really capable of forming full, autobiographical memories until we’re a little more than 3 years old; our brains just aren’t that sophisticated yet. But a new paper published in Psychological Science found that nearly 40 percent of the participants in the study were sure their first mem