What you term "massive shifts in paradigm" is just alternate models created, speculated, mused..and plugged-in to known FACT to tease out the detail
It's to be applauded, creativity but applied against known fact & plausible theory. The VAST MAJORITY OF THESE FAIL! AS THEY SHOULD.
Very few things change Any thing is more accurate representation
Yes, very interesting indeed!
Q https://en.wikipedia.org/wiki/A_Universe_from_Nothing
Commenting on the philosophical debate sparked by (and largely ignored in) the book, physicist Sean M. Carroll asks "Do advances in modern physics and cosmology help us address these underlying questions, of why there is something called the universe at all, and why there are things called 'the laws of physics,' and why those laws seem to take the form of quantum mechanics, and why some particular wave function and Hamiltonian? In a word: no. I don’t see how they could."[6]
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Samantha Nelson, writing for The A.V. Club, gave A Universe from Nothing a 'B' grade and commented that it "is solidly in the New Atheism camp, a cosmologist’s version of Dawkins’ The Blind Watchmaker" but noted that "the concepts he explores are so complex, and filled with so many factors that top physicists and cosmologists don’t understand, expanding on them in print actually makes them more confusing".[10] In New Scientist, Michael Brooks wrote that "Krauss will be preaching only to the converted. That said, we should be happy to be preached to so intelligently. The same can't be said about the Dawkins afterword, which is both superfluous and silly."[11]
UQ