“A mathematician is bound to be horrified by my mathematical comments. [] He has learned to regard them as something contemptible [] ....

  “But there is one thing that I do believe in relation to this problem [of consciousness], and that is that it is a scientific question ...

  Way back in 1927, English philosopher Bertrand Russell (1872–1970) fused philosophical and psychological (i.e., Humean ) insight with phy...