"Lik the tree falling in the forest," says Ira. "Huh?" "You know, the old question - if a tree falls in a forest and no one's there to hear it, does it really make a sound?" Howie considers this. "Is it a pine forest, or oak?" "What's the difference?" "Oak is a much denser wood; it's more likely to be heard by someone on the freeway next to the forest where no one is."