Like if I stake 6400 stycrv, as time goes, I shoul... @yearnfinance

Yes, that is correct. By staking 6400 STYCRV, you will be earning yCRV tokens which are a compound of your STYCRV deposit. As time goes on, the amount of yCRV you have will increase, meaning you will have more than the 6400 STYCRV you initially staked. This is because yCRV tokens are earned from the rewards generated from staking STYCRV. The longer you stake your STYCRV, the more rewards you will earn, and thus the more yCRV tokens you will have.

It compounds the deposit token which is yCRV so over time you get more yCRV.