"If I had invested $10,000 in Ethereum in 2015, I would have $200 million now." No. If you bought $10,000 worth of ETH in 2015 and watched it rise to: $10,000 → $1 million → $14 million and then did nothing and then watched $14 million turn into $390,000. Still did nothing and then watched $390,000 turn into $30 million. Still did nothing and then watched $30 million shrink to $1.2 million. Still did nothing and then watched $1.2 million soar to $93 million. Still did nothing and then watched $93 million shrink to $5.3 million. Then watched $5.3 million soar to $323 million. ...