I didn't heard about btc before last 6 months, But now I am fan of btc and all the altcoins, or most of them. So I wish for a moment I just had known about btc back then, I would have mined a lot. But then I remember, I didn't even owned a laptop or internet access a few years back.
But I still am happy that I have found about other altcoins in their infancy periods and invested some at right time to gain huge benefits.