suggests all alien civilizations remain intentionally quiet, hiding from reconnaissance efforts and possible hostile civilizations. It argues aliens may attack any civilization which does not remain silent.
"Admit it. We're lost."
"All right, we're lost. But we're making good time."
"I don't believe this."
"Bad news. Shore leave is cancelled."
"Rescued at last."
"Return to the prearranged coordinates for pickup."
"You can't tell them we're lost. We'd never live it down."
"What's the problem?"
"Er... We've been caught in a tetrahedron!"
"Shhhh, Shhhh, and we can't see a thing."