Introduction of Kant's CPowerJ holds significant clues to his CpureR, the founding work of modern philosophy, CpowerJ being nearer to the A edition, than to the B. He had revised CPureR-A and produced CPureR-B due to critics charging him with psychologism, a fundamental error on the critics' part. No science can be released from its inherent & implied metaphysics, hence metaphysics must be permitted to spill over into psychology as well as other sciences. E.g., today we might be tempted and say that Kant's noumenal object, the thing by itself apart from becoming a phenomenon, can be identified with the physicists' vacuum and with their quantum foam (Wigner).