Cloud Hunting

If you don't know what something is, it's more difficult to see it, however hard you look. The eye/brain works with a vast library and interpretative system that constantly checks and compares.  When it sees clouds, the references tend to be as background, as a low processing priority. Effectively, our default mode for seeing clouds is as a static, 2-dimensional backdrop.

Travelling on motorways and in trains, I began to notice that the smooth, rapid movement of my viewing position was giving a clearer view of the dimensions of the clouds. The eye brain begins to receive new motion parallax information, changing the nature of the optic flow, and allowing the library to swing into action and deliver a picture of a 3-dimensional object.

Watch in HD if you can.