People who study such things say that the human brain—this folded lump of mostly fat—has a pretty good hard drive…the average adult brain has a capacity of about 2.5 petabytes…put another way, that’s 2.5 million gigs…that’s a lot. We’re talking personal memories, facts, academic education, learned behaviors, and muscle memory…there are also special places where things like musical memories and lyrics are stored. Some memories remain rock solid, barring some kind of injury or illness…but because we’re always experiencing new things, we forget other stuff as new experiences crowd out the old stuff. As a result, things fade…significant details about something can start to fade away within days—even hours or minutes, depending on circumstances surrounding that memory…some will become corrupted—which is why eyewitness accounts are often considered unreliable in court…and it’s not like we can download a backup of our memories—at least not yet. This is why it’s a good idea to a little maintenance on the hard drives in our head…and that can be as simple as doing a refresh…how?...but stopping for a little history…a quick study on where we’ve been, what we’ve done, and what’s happened to us…think of it as pressing “F4” on a keyboard a bunch of times. John Lennon said “life is what happens when you’re making other plans” …and the more time goes by, the more plans we might have made…inevitably, we forget some of life. And that’s why if we want to know why things are the way they are—and where things may go in the future—we have to hit “F4” every once in a while. This is such a program…it’s part ten of the 100 greatest rock moments of the millennium so far…how many of these things do you remember?...and have you even thought of them in this way?...let’s find out with moments 10 through number 1. Songs in this episode: The Strokes - Someday Linkin Park - One Step Closer Metallica - St. Anger U2 - Vertigo BoyWithYuke - Toxic The Tragically Hip - Ahead By A Century (live) Sum 41 - Over My Head (live) Pocket Gods - Who Do I Have To Sleep With To Get On This Spotify Playlist? U2 - Where The Streets Have No Name Learn more about your ad choices. Visit megaphone.fm/adchoices