The End of Everything (Astrophysically Speaking); Katie Mack; 2020; 210 pgs, index

​Have you ever wondered how it will all end? And by "all", I mean everything… space, time, matter, light… the works.

The author is a cosmologist. She has a good sense of humor.
First… do not sweat it. The end is not due for quite some time. When it does come, months and months from now, it might come as space unraveling. If that happens, you will not see it coming (because it is moving towards you at the speed of light), and you will not notice when it arrives. Because you, along with everything else, will be gone. 
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I was familiar with about 70 percent of the book's content. These rest was both interesting, and opaque in the sense that the conclusions come from what I assume is very deep math. So rather than summarize it, I will simply list it as a good read. It is quite approachable, even if this is the first thing you have read about the subject.

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