Does the definition of a perfect number necessitate that it is even? - Quora
https://archive.ph/DUvlm

Why is Physics not mathematically rigorous? - Quora
https://archive.ph/l0Kys

Why are there hundreds of billions of galaxies instead of one humungous Galaxy? - Quora
https://archive.ph/pAFh3

How powerful is Sun Wukong? - Quora
https://archive.ph/VXOvF

How do astronomers measure the radius of a star? - Quora
https://archive.ph/Ek74V

general topology - What is the cardinality of the set of all topologies on $\mathbb{R}$? - Mathematics Stack Exchange
https://archive.ph/ua71o

Why physicists now question the fate of the Universe - Big Think
https://archive.ph/S4cGn

If something has zero probability, it doesn't necessarily mean it's impossible: e.g. a random real number generator giving the same number twice. Infinite digits would have to be the same. Probability 0 but in principle it could happen. Correct? - Quora
https://archive.ph/6aVBw

Does the existence of Hawking radiation suggest that nothing truly enters a black hole? - Quora
https://archive.ph/OhQav