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jkanownik 's review for:
Some interesting ideas that comes off as a collection of blog posts or podcasts instead of a cohesive book. There are at least 100 pages missing from a 5 star version of this. Carlin goes light on details in a lot of places and doesn't even attempt to answer the harder questions raised in the book. There are many pieces of history relevant to future apocalyptic scenarios that are missing. I still would recommend the book if you're interested in the topic because there is a lot of great research here and there isn't a better alternative I am aware of.
What I'd add to the 5 star version of this:
* Chapters specifically dedicated to the open questions (vs. just repeatedly referencing them)
* Chapter(s) on the Mayans and Incans
* Chapter(s) on the Permian extinction event and potentially other mass extinction events
* Full chapter on the Fermi paradox vs just an afterword
What I'd add to the 5 star version of this:
* Chapters specifically dedicated to the open questions (vs. just repeatedly referencing them)
* Chapter(s) on the Mayans and Incans
* Chapter(s) on the Permian extinction event and potentially other mass extinction events
* Full chapter on the Fermi paradox vs just an afterword