“When you and I played our duet, we followed each other, hopping from tune to tune seamlessly. You started the tune, and I followed your lead. In some ways, you were operating like the transmitter of a signal—like a submariner or sailor—and I was operating like the receiver—like the torpedo. And I began thinking, what if the submariner or sailor and the torpedo constantly hopped from radio frequency to radio frequency just like you and I hopped from tune to tune? That would make the communication from submariner or sailor to the torpedo nearly unjammable by the enemy, wouldn’t it?
