Date: 17 Feb 1981 10:49 PST
From: McKeeman at PARC-MAXC
Subject: Re: 4x4x4 cube
In-reply-to: Your message of 17 Feb 1981 07:54:00-PST
To: microsoft!zibo at Berkeley
cc: cube-lovers at MIT-MC

Zibo,

All things are possible in the computer.  My undertanding is that a 4x4x4 is
being built, but I have not heard that it is yet complete.

The real mind-bender is the continuous Rubik Sphere.  Take a sphere, slice it
arbitrarily many times.  Now each slice makes a plane of rotation and gives a
degree of freedom.   The Rubik Cube is a special case for which there is a
mechanical implementation.

Bill