Is Suzuzu a Time Machine?

"I don't want to go back and like change anything in my life. Who knows the unintended consequences of that?" "Selling everything now is actually quite high on my list of things I would do if I was given one shot at a time machine." If you could go back in time, what would you do? "You're like going back in time one thing. You can't benefit yourself or humanity. You just got to go," he says.