It certainly doesn't help that most of the websites out there attempting to explain it are completely wrong. They all make the claim that it happens as a result of arbitrage from centralized exchanges which is 100% false. If centralized exchanges didn't exist (example: CUB) it would still happen in exactly the same way.
At the core "impermanent loss" is simply dollar cost averaging. Your coins are for sale, so if CUB goes x2 you're selling CUB all the way up. Obviously if you're selling all the way up you won't make as much money as if you just held the entire time. DCA lowers volatility so there is less risk but also less reward.
