The things that are "common knowledge" change frequently. What will we know in 20 years that we don't know now? What will we know that we think we know now? This episode is brought to you by Amazon Books. Visit JKWDPodcast/Books and pick up one of the over 200 books we've mentioned on the podcast, and they'll kick us a few cents. This episode is also brought to you by Vitamin K Daily. Get 4 weeks free when you sign up today! Links • Elon Musk ready to colonize Mars • Richard Branson ready for space tourists • mRNA vaccines • Polio • Diphtheria • Cmdr. David Fraver's UFO sighting • Jet packs on approach to LAX • Flying car gets FAA approval • Ignaz Semmelweis

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