Remember 2021? That was absolutely wild for altcoins. I was just looking back at some of those insane gainers from that year and man, the contrast is striking. Coins like Gala, CEEK, and Axie Infinity were posting 5-figure percentage gains - we're talking 40,000% for Gala, 25,000% for CEEK. Everyone was talking about the best altcoins to invest in 2021, and these were at the top of everyone's lists. Solana, Polygon, Sandbox - they all had monster runs that year.

But here's the reality check that hits different when you look at the data now. Gala is down 79% from those peaks, CEEK crashed 85%, and Fantom got absolutely decimated at 92% down. Even the ones that seemed more solid like Polygon only held up relatively better at 26% down. Solana is sitting 40% below where it was. It's a brutal reminder that just because something had crazy gains doesn't mean the party keeps going.

The thing that gets me is how 2021 felt like everyone could just throw money at random altcoins and make bank. The total crypto market cap went from like 770 billion to over 2 trillion that year. But as it turns out, most of those 5,000%+ gainers didn't sustain. They were the best altcoins to invest in 2021 if you had perfect timing, but timing the top is basically impossible. It's a good lesson in why DYOR and not chasing past performance actually matters.