Even if dreams arose as interference, given that evolution "tries" to capitalize on every possible opportunity, doesn't it seem likely that there's useful infor

Even if dreams arose as interference, given that evolution "tries" to capitalize on every possible opportunity, doesn't it seem likely that there's useful information in them? The ego controls the self all day in a process that discards lots of information; at night, other processes (perhaps that were ongoing in the day, or perhaps new ones) might be able to "speak" and be heard where in the waking state they would be ignored.