Science is often about observing.... this image is ambiguous, but what you see depends upon what you can imagine - is it an old woman or a young girl?

Einstein once said: "Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution." In fact, Newtonian physics and Einsteinian relativity were both able to describe the manner in which the "world" worked, but for a long time, no one saw what Einstein saw.

How you look at the world around you, may depend in part on what you expect to see, or what you see first!....Beware of that trap.