A simple cosmology

MyWorld is the personal blog of Peter Michael Vestlev. It presents physics as simple and straightforward — perhaps too simple, perhaps too straight — and asks the reader to walk along.

The writing starts from one finding: light in vacuum travels at a constant speed, independent of the observer. From there, Lorentz, Einstein, and the Pythagorean axiom lead to a four-dimensional world that may be drawn as a sphere — its interior the past, its surface the present, its exterior the future.

Each section is split into pages. Readers can leave feedback on any paragraph; please use your name. Disagreement is welcome.