"I'm This Old" is a brand new Twitter meme that really has people confronted with their age, and that's the scariest thought of all.
If you remember all or most of these things then you're likely a sad Millennial who's feeling a little panicked yourself about getting older (we're totally not projecting here or anything...). Worry not, because you're not the only one going through the harrowing process of feeling like you don't fit in with the kids anymore. Pretty soon you're going to look at a group of 20-year-olds and be tempted to say "how do you do, fellow kids?"