At the risk of being accused of stalking, hypotheses do not spring out of nowhere looking for evidence. They are generally formulated to suggest an explanation for an observed phenomenon (Why do apples fall out of trees and why do planets follow the orbits that they do?) or to fill in the gaps not covered by exisiting theories. (Newton's theories of motion and gravity do not cover the behaviour of light. Newton new this.)

[gasp] NO!!!!!!!!! Why, I never knew THAT! [shock]

All kidding aside, yes I know that, DUH, and that's why I posted exactly what I did. If someone observes something through any means [what a shock] they may want to TEST the suspected cause.

~Susan