PP space-time denotes the permutated period of space and time. Understanding this would certainly allow a few plausible scientific explanations for the existence of a universe or those infinite multiverses.

At the elementary level, permutation is defined as the arrangement or rearrangement of many similar or identical things belonging to a set. For examples; (1) the arrangement of 3 letters of the English alphabets ABC, there are 6 permutations: ABC, ACB, BAC, BCA, CAB, and CBA; (2) the numerals 123 of the set of whole numbers: 123, 132, 213, 231, 312, and 321. The permutation of n objects is equal to n!=n(n-1)…(n-n+1). For the previous examples n=3, and their permutation is given as 3!=(3)(2)(1)=6. For n objects taken r at a time, the permutation P(n,r)= n(n-1)…(n-r+1). For example, n=5 and r=2 then P(5,2)=(5)(4)(3)(2)=120 or n!/(n-r)!. Suppose that n objects are of k different kind with r(k) alike of each kind then the number of distinct permutations of the n objects equals n!/{r(1)!r(2)!...r(k)!} where r(1)+r(2)+…r(k)=n. For example, the number of different anagrams of the word ‘MISSISSIPPI’ is 11!/{4!4!2!)=34650. However, if k=n where and when everything is identical then the permutation is n!/n!=1 signifying 1 universe.