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The space of the Einstein Universe is +ve and hence, the Universe is finite and closed. On the basis of solutions of the field equations, it is also possible that the curvature is -ve. In that case, the infinite and open Universe has also been conceived.
Thus, on the basis of +ve or -ve curvature, there are two concepts of Universe (1) finite and closed and (2) infinite and open.
Now, if we assume that the curvature of Lokakāśa is +ve and that of the Alokakāśa is -ve, the finiteness of the Lokakāśa and the infiniteness of the Alokakāśa are possible. Confined to the finite but unbounded boundary, at the edge T=0 (where T is absolute temperature), nothing can move, nothing can escape from the Universe, whatever dimensions their Universe have. No motion in super cosmic space. Pudgala cannot reach there - the boundary of the loka.
Thus, the Jain Theory of Lokakāśa and Alokakāśa can be taken as a combination of the two cosmological theories (Universe) which accepts +ve or -ve curvature of space.
Jain Philosophy
Einstein's Universe Loka-akāśa always occupied by Pudgala, finite and closed.
De Sitter Universe Aloka-akāśa empty space, infinite and open.
Lokaloka-akāśa Akasastikaya combination of both Einstein's Universe and De Sitter Universe.
In a way, Einstein's Universe and De Sitter Universe are subuniverses of the universe of Jain Cosmology.
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