Nick Lane's book/hypothesis really change the way I think about life on other planets. His hypothesis is basically that the chances of Eukaryotic cells emerging

Nick Lane's book/hypothesis really change the way I think about life on other planets. His hypothesis is basically that the chances of Eukaryotic cells emerging from bacteria (via natural selection) are so rare (it only happened once in two billion years on our planet) that we really shouldnt expect to find intelligent life on other planets - rather the life we will most likely find will be small cells like bacteria and archaea, that lack a nucleus (and never get very big). He does a much better job of explaining why, but it is interesting nonetheless. [1] https://www.theguardian.com/books/2015/apr/22/the-vital-question-nick-lane-review-secret-life https://www.theguardian.com/books/2015/apr/22/the-vital-ques...