We here at YoYo-Dyne apologize for the cancellation of our guest speaker tonight.
Stephen Hawking could not be here as he has discovered that his local Chinese restaurant now offers online ordering.
Frankly, once he gets going he may never leave his chair. Too bad he had already vacated the one at Cambridge. Probably far more comfy.
So tonight we will be dark and doing investigative research work on the top secret branch of the Reno Manhattan Project.