*PROFESSOR 'MULTIVERSE' PARAMOUNT*

FRINGE IDEAS : "It is a debate that touches on the very foundations of cosmology,'' Hertog said.

''The underlying question is whether we can achieve a deeper understanding of where the laws of nature come from, and whether they are unique.''

Not everyone likes the new theory.

''The idea that we live in a ''multiverse'' is a fringe idea in a small part of subfield of the physics community,'' said theoretical physicist Sabine Hossenfelder of the Frankfurt Institute of Advanced Studies.

''Nobody who does serious science works with the multiverse because it's utterly useless,'' she added.

The main problem, Hossenfelder explains, is that any multiverse theory is that any multiverse theory is ''underdetermined'' and ''doesn't contain enough information to make calculations.''

For detractors, a multiverse theory complicates our understanding of our own universe.

But it has defenders too.

For astrophysicist Aurelian Barran of  Laboratory of Subatomic Physics and Cosmology in Paris, ''the concept makes sense.''

''It is remarkable that today numerous types of universe can be envisioned.''

''Several theories, reliable for some and speculative for others, lead to the prediction of multiverse,'' he said.

For Hertog, the new theory is a step in the right direction.

''It makes the cosmology based on our new theory a lot more predictive, a lot...... stronger as a scientific theory and therefore ultimately, we hope, testable.'' he explained on the UK Leuven website.

The latest Operational Research on theory of Mutiverse continues to Part 3.