Philosophy

Table of Contents - 2001 - Volume , Issue 04  


That Useless Time Machine

Robert Casati  and Achille C. Varzi 

Abstract

Dear ‘Time Machine’ Research Group; if in order to travel to the past one has to have been there already, and if one can only do what has already been done, then why build a time machine in the first place? À quoi bon l'effort?