This book was not what I expected nor what I was looking for. There's a question about the overall negative reviews, and I wonder if one problem of this book was that it was poorly marketed/targeted/sold?
If you, like me, were looking for a book more about a literal end of time, I recommend [b:The End of Everything|52767659|The End of Everything (Astrophysically Speaking)|Katie Mack|https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/books/1574199214l/52767659._SY75_.jpg|59898322], which was great!