Intersecting Reflections, originally uploaded by TylerKnott.

If you look at this just for a moment, you'll see the blue sky reflected in the water on the deck...if you look longer, the blue sky disappears and you realize it's turned into the diagonal shadows of the deck slats...those then turn into the reflection of those very same slats going straight up and down. Then there's the line of nails going the other direction, then there's the board lines on the floor of the deck going horizontally. Weird.