معنى يفيد

What would that have achieved? Was he gonna jump into his time machine and fix everything?

I'm pretty sure Dante would agree that qualifies as useless.

Killing the parasites isn't gonna do much good if we kill her heart at the same time.

Uh huh. Whereas tumors are really good for brains. Make 'em grow big and strong.

You think you can avoid firing one of us by hiding out here?

He remembers voices. This serves no diagnostic purpose.