Of Time and Travel
NON-FICTION by in Issue 188 – May 2022
A fundamental consequence of Einstein’s Special Relativity is that no physical object can travel faster than light. A somewhat lesser-known consequence of this fact is a counterfactual. Any physical object (like a starship) traveling faster than light will break causality in exactly the same way a “time machine” would. That is, faster-than-light travel and time […]