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Fundamental physics has now been stuck for almost a century. Ever
since the discovery of general relativity and quantum mechanics in
the early 1900s, the brightest minds in physics have been striving
to combine these two paradigms into a single unified theory of
quantum gravity, without success. The general consensus is that we
are missing a big piece of the puzzle. Now, there are exciting new
hints coming from fundamental physics research that may finally
unlock the enigma of quantum gravity, the holy grail of modern
physics. Recent results point toward one central idea; the
importance of scale transformations in physics. Magnifying
Spacetime delivers new insights into the role of scale in quantum
gravity from the cutting-edge of modern research using an
accessible and pedagogical style. The ideal complementary text for
undergraduate and graduate students, this book also serves as an
essential resource for professional physicists working on related
topics. However, the scientifically literate layman should also
find this work accessible due to the emphasis on conceptual
understanding. Daniel Coumbe takes readers on a journey from the
basics of scale transformations to the frontiers of quantum gravity
research, including fractal geometry, minimum length scenarios, the
renormalization group, Weinberg's asymptotic safety scenario,
causal dynamical triangulations, spontaneous dimensional reduction,
and Weyl's modification of Einstein's general relativity. Isaac
Asimov said, "The most exciting phrase to hear in science, the one
that heralds new discoveries, is not, Eureka! I've found it, but,
that's odd!" The recent discovery that the world may be
two-dimensional at extremely small distances, which is one of many
striking results covered in this book, certainly counts as odd.
There is now a small window of opportunity in which to get ahead of
the curve by understanding such phenomena and developing new
theoretical models and predictions, before the coming surge of
experimental results.
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