&quot;Neurons, brains, space … these are just symbols we use, they’re not real.&quot;<p>Such bullshit.  Yes, they are symbols, but &quot;just&quot; symbols?  They don&#x27;t approximate reality at all?  If so, how would he even know?<p>Edit: Let me elaborate.  Yes, it&#x27;s possible the world is just one big movie set, and nothing is remotely what it seems to be.  It&#x27;s possible everything is just a dream.  But this is among the most banal of ideas.  We have only made progress as a species by identifying deep, universal consistencies that have proven more reliable than anything else we know.  Various scientific revolutions do not change the fact that the game is the same: to account for our observations parsimoniously.  Now this guys says, it&#x27;s all &quot;just&quot; symbols.  Such bullshit.