3 ms·

And also "When does a physical system compute?" (Clare Horsman, Susan Stepney, Rob C. Wagner, Viv Kendon): http://rspa.royalsocietypublishing.org/content/470/21

• danghica 11y ago
  Yes, but they merely spell out Chalmers's implementation relation without even acknowledging it properly: "The question of when a physical system is computing is fundamentally a question about the relationship of abstract mathematical/logical entities to physical ones [22]."