Except that the SPE/ZPE was critically flawed: http://digest.bps.org.uk/2014/07/what-textbooks-dont-tell-you-one-of.html http://digest.bps.org.uk/2014/07/what-t

Except that the SPE/ZPE was critically flawed: http://digest.bps.org.uk/2014/07/what-textbooks-dont-tell-you-one-of.html http://digest.bps.org.uk/2014/07/what-textbooks-dont-tell-yo...