Is There Really An Infinite Multiverse? - Stephen Hawking's Last Paper

Stephen Hawking and Thomas Hertog's latest paper challenges the multiverse theory, suggesting that the multiverse may not be infinite and that other universes could have similar laws to ours. The paper uses advanced mathematics from string theory, ignoring the dimension of time, to propose that time didn't exist at the universe's beginning. The theory remains untested due to technological limitations, but future instruments like the European Space Agency's LISA may provide evidence. The work continues to influence cosmology, with Hawking's legacy enduring through ongoing research.

What role do gravitational waves play in Hawking and Hertog's research?

Why is it important to unify general relativity and quantum mechanics in the context of the multiverse?