Hvalsey church ruins, Greenland. Credit: https://en.wikipedia.org/wiki/User:Number_57

Collapse is a fascinating, if somewhat exhausting, read. The central point of the book is that environmental changes, man-made or not, have been responsible for many a civilization’s collapse.

Sapiens in an image.

Sapiens has no central point being made; rather there’s an intricate web of mostly interdependent theories and speculations. This makes for an enjoyable read, however at times it is easy to lose sight of the original premises used to build up on increasingly speculative conclusions.