Offset your carbon footprint on Wren: ​https://www.wren.co/start/unzickersre... The first 100 people who sign up will have 10 extra trees planted in their name!

When formulating general relativity with variable speed of light (Einstein's original 1911 idea), one has to think about electrodynamics...
Follow also my backup channel at https://odysee.com/@TheMachian

This video was sponsored by Wren.