During the last months, particularly during the last weeks, Ethereum has dropped spectacularly, and all the tokens that are paired with it have gone -80% or more. Can we say that the dirt has been cleaned and we can now invest at the right price?
No, I don't think that has exploded as before even though we know Ethereum is indeed far below last year's price and smart traders will take advantage of prices and collect some of them because when super bubbles actually explode, only a small portion of altcoin will survive.
Maybe it's safe to invest, maybe not. Anyone's guess. Now, prices will go up to maintain until we have the next pump. We can say that for ethereum but not all ethereum-based coins.