The philosopher  David Chalmers  once discussed  Erwin Schrödinger ’s well-known  thought-experiment . Chalmers did so in order to compare w...

  What is it for a lemon to be “objectively bitter”? According to the philosopher  Daniel Dennett  (who died in April), it’s  “to produce a ...

  “A quark is a purely mathematical construct. It has no meaning apart from its mathematical definition. The properties of quarks — charm, c...