A fantastic piece on fundamental questions involving
physics:
How Feynman Diagrams Almost Saved Space
by Frank Wilczek
https://www.quantamagazine.org/20160705-feynman-diagrams-nature-of-empty-space/
For anyone needing a quick refresher, the following books provide an excellent reintroduction to basic first year college-level Physics topics:
Fundamentals of Physics: Mechanics,
Relativity, and Thermodynamics (The Open Yale Courses Series) by R.
Shankar
Fundamentals of Physics II:
Electromagnetism, Optics, and Quantum Mechanics (The Open Yale Courses
Series) by R. Shankar