Evolution of Exploration

I let Cooper loose with the water hose the other day and I think I had just as much fun watching him as he did playing in it. He watched it flow - on the ground - on his body - up in the air - making bubbles when he put it in the pool. He tasted it, stuck his finger in the end of it, shook it back and forth and watched it zig zag in front of him. I didn't give him any guidance at all and he did all of these things on his own. I love watching him discover and explore...