A team of scientists has uncovered details of the neural mechanisms underlying the perception of objects. They found that patterns of neural signals, called traveling brain waves, exist in the visual system of the awake brain and are organized to allow the brain to perceive objects that are faint or otherwise difficult to see. (1)

Travelling humans.

Able to detect things which are difficult to detect.

Thinking humans.

Able to grasp ideas that are difficult to grasp.

Oh, arrogant man. Why would you like to think of the unthinkable? Why should you wish to detect the undetectable? Sit. Smell the forest. What you cannot see, is what makes it be.

(Would you be if no one detected thee?)