"Sorry, I didn't realize jokes have gone out of fashion in the future."

Frivolous. Not many people have applied that word to him in his lifetime. His smile turns insular, amused by the inside joke.

"You say that as if I can't do both. We nerds are quite good at multitasking. Our project is escape, but theirs is keeping us right where we are. The more we know about why we were chosen and why our memories don't line up, the better we'll understand who we're dealing with. Besides, aren't you curious?"

About 'other worlds'? What it all means?