Open source must be able to deal with patent licenses if necessary

And the reason for this is that classical physics is couched in maths. It is self-consistent, built on a bunch of axioms, and can be shown to be mathematically correct.

Unfortunately one of the KEY assumptions (if not THE key assumption) is the axiom "parallel lines never meet". Which has been empirically proven false - Einstein's 1919 solar eclipse experiment was the event.

Cheers,
Wol