The Question Marked Nebula

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i thought i'd dive into a this conversation by channelling my inner donald rumsfeldfo his famous two thousand two press briefing, where he said there are known knowns. We also know that they are unknown, no unknown unknowns. This would be something like the known unknowns, right? We know there's something there, we just don't know what it iss. And notn te known unknowns. That's grant on a level that we can't actually quantify it. So add a, dark matter, dark energy. This 96 % of what is driving this universe, and we don’t know what it is. It should be called dark gravity.

In this thought-provoking conversation on life, the universe, and everything, Neil deGrasse Tyson tackles the world’s most important philosophical questions about the universe with wit, wisdom, and cutting-edge science. For science geeks, space and physics nerds, and all who want to understand their place in the universe, this enlightening new book offers a unique take on the mysteries and curiosities of the cosmos, building on rich material from his beloved StarTalk podcast, along with dozens of his most popular tweets on science. Shermer and Tyson discuss: the universe, multiverse, big bang, big rip, dark matter, dark energy, gravity, gravitational waves, origins of morality, hard problem of consciousness, consensus science, the unknown, Fermi’s paradox, extraterrestrials, and artificial intelligence.