Is Roger Penrose a Platonist or a Pythagorean? Roger Penrose is not only a mathematical physicist: he’s also a pure mathematician.
To 3D and Beyond How many spatial dimensions do we live in? How many can we directly perceive? Are the two answers the same? If they are different, what effect, if any, do any higher dimensions have on us?
When Cantor Taught us to Count My theory stands as firm as a rock; every arrow directed against it will return quickly to its archer. — Georg Cantor