"Homo Deus" by Yuval Noah Harari: Summary and Review
Harari's sequel to Sapiens asks what humans will want once famine, plague and war are under control. Its key ideas, weak points, and who should read it.
9 min read≈ 1,970 words5 questions
Field
Technology & Computing
Engineering, computing, AI and the internet.
1 Idea · 1 Book · 8 questions
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IdeaIntro
What Is Public-Key Cryptography?
Every day your phone sends secrets to computers it has never contacted before, over networks that anyone can listen to. You learn how that is possible, how ordinary numbers can work like a padlock, and how to follow one small example by hand. You also learn what the padlock icon in your browser does not promise.
8 min read≈ 1,770 words3 questions