@DampSquid
@feddit.ukGlad Hacks beat The Bear, S3 of The Bear is soooo boring and worthless, not to mention unfunny.
Warmer air has a different density to colder air, so the light refracts/bends, like through a prism.
The shadows occur as the light happens to have been focused away from those points.
Edit: Not a scientist. Currently high.
I was there! It was pretty great actually. Hemispheres was incredible and the crowd really popped for YYZ. Overall very well done, and some very impressive skills on show.