Blog.

Feb 1, 2018

The Answer to (almost) Everything

A well-defined, yet uncomputable number encodes the solutions of all finitely refutable mathematical conjectures (and it's not 42).

Dec 1, 2017

Self-consistency in time travel

Could you change history by traveling back in time? A careful analysis of time travel dynamics suggests that the laws of nature would prevent you from tampering with the past.

Oct 1, 2017

Uncertainty Principle in Classical Mechanics

Classical mechanics satisfies an uncertainty principle reminiscent of the quantum Heisenberg uncertainty principle.

Jun 1, 2017

The Orion project

Interstellar transport powered by nuclear explosions.