elharo comments on Does model theory [psychology] predict anything? (book: "How We Reason" (2009)) - Less Wrong

2 Post author: Jonathan_Graehl 03 June 2013 03:11AM

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Comment author: elharo 03 June 2013 11:37:35PM 0 points [-]

Yes, the way I finally understood this was imagine a horizontal disk whose circumference the equator. It can spin on one axis (through the center of the disk from north pole to south) while remaining horizontal. However a vertical disk oriented along a great circle can spin on two axes while remaining vertical, one from the north pole to the south pole crossing a diameter of the disk and one through the center of and perpendicular to the disk.