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This review is from: Gravity's Engines: How Bubble-Blowing Black Holes Rule Galaxies, Stars, and Life in the Cosmos (Hardcover)
The broad theme of `Gravity's Engine' is to develop and unpack the role that black holes play in cosmic evolution, or the creation of galaxies and all objects and in our universe. Scharf even argues that the presence and behavior of black holes may be an explanation that even sets the stage for biological evolution--origin of life. In Scharf's words, "we have found a new way for black holes to sculpt and mold the world around them . . . black holes play a crucial role in the evolution of cosmic structures across time. They regulate the production of new stars in the giant galaxies of today's universe, and have likely done so throughout cosmic time." Sharf continues by stating that "black holes are controlling the production line" making black holes cosmic regulators in the formation of stars and galaxies throughout the universe.
I have purposed to make this review short and to the point as other reviewers have already unpacked the collateral arguments throughout Scharf's book. The book reads fairly straight-forward, but it is not a page turner like Neil Turak's `The Universe Within,' or Paul Halpern's `Edge of the Universe,' both of which I would highly recommend before purchasing Gravity's Engine. This book does not require a background in cosmology, cosmogony or physics. I would classify this book as a popular level reading for science fans (14+), with the caveat that the book is focused on a very specific issue.