Recognition crosses Russell's face at the mention of mental changes, and he slowly nods. It wasn't at the aurora for him, but there'd been another familiar but he has found himself remembering things that have nothing to do with his life. Not like a movie, but memory. Maybe like of a dream he's had hundreds of times, implausible but familiar.

"Physical changes, too..." It doesn't rest easy with him, not with ideas of changing skin colors or other superficial freak show imagery... and then the last phrase registers. Russell blinks a few times, the idea struggling through his mind, and he stares at Ben. "Wait, wait. That sounds like you're talking about superpowers."