Sometimes I think..
If now we have a fast network with ecology as prosperous as ETH and low tax
Why we need L2 network and ETH..It seems like a deficient network repairing itself constantly.
And POS is without justice that the strong will always be stronger.Blockchain need justice and every one is equal.
I want to see you mates' opinion.And if possibile,please recommend me the best cryptocurrency undervalued now thx.

There's one inherent issue that both Bitcoin and ETH suffer and that's the inability to scale the networks when the demand for computing resources peaks. ETH thought it could solve this problem but it's an ongoing problem that is yet to be fixed (the blockchain trilemma). L2 are simply scaling ideas that are yet to make a huge statement.
For other altcoins, the best bet over the years has been getting newer tokens which are hyped as the next best thing and dump it when it has gotten to peak price.