I just learned last week. I found the word bitcoin next a last modified date of 2011 in my backups while looking for something else. My heart kind of started r

I just learned last week. I found the word bitcoin next a last modified date of 2011 in my backups while looking for something else. My heart kind of started racing as I looked through it. The backup was of a mining program I was using, and it had the address that I was mining to. Looked up the address, it has 13.3 BTC in it! I started unpacking the whole archive to find the wallet, only to learn that I didn't backup the wallet.dat. I don't know why I didn't, probably some combination of it being worth like $30 at the time + not knowing exactly where the private key was stored. But it brings the total amount of bitcoin i've lost over the years up to 23.3...