It was a far, far future thing, and fairly so. Allowing for Waver to dismiss the thoughts, Dirk answers, "It wouldn't be great for putting something together, but it's enough for dismantling. The cabins aren't enough for it."

So the lights will do for his project. What he doesn't say is that he's restless and can't sleep, that it makes him nervous and unsettled. That he's working now to try to calm some fragment of himself and let rest happen.