I must quote here still one more talk with G., once again in connection with cosmoses." This is connected with Kant's ideas of phenomena and noumena," I said. "But after all this is the whole point.—The earth as a three-dimensional body is the 'phenomenon,' as a six-dimensional body, the 'noumenon.' " "Perfectly true," said G., "only add here also the idea of scale. If Kant had introduced the idea of scale into his arguments many things he wrote would be very valuable. This was the only thing he lacked."
An excellent reminder for all of us.