We did the same down at Lurelin on the south coast, where he saw a stationary boat and asked if we could make it go, and I said well maybe we could build a boat ourselves (having seen a big board lying on the beach nearby). We do that, and cruise the southern sea. I can see THE EMPOWERMENT OF KNOWLEDGE written upon his wee face. Neurons starting to high-five each other and form a dim view of the idea of underlying principles that make the gears of the world turn.