Episode #795

Subject: Time travel without paradox? I’m sure you’ve gotten many e-mails on this one. Any chance you can or can get a mathematician to explain how things like reality compensating for changes the time traveler makes can be expressed mathematically? Feels like trying to have an equation for free will or maybe just a smile… Cheers! Rich Dayton, OH

Item #1 Science
John Elfreth Watkins Jr., the curator of mechanical technology at the Smithsonian Institution, in 1900 predicted that by the 2000s, ‘there will be no C, X, or Q in our everyday alphabet. They will be abandoned because unnecessary.’https://bestlifeonline.com/2020-predictions/?nab=0&utm_referrer=https%3A%2F%2Fwww.google.com%2F
Item #2 Science
In 1911 Thomas Edison predicted, “It will be an easy matter to convert a truckload of iron bars into virgin gold.”https://www.bobvila.com/slideshow/13-odd-predictions-about-the-future-that-people-in-past-decades-got-wrong-and-right-52637
Item #3 Science
“Nuclear-powered vacuum cleaners will probably be a reality in 10 years.” – Alex Lewyt, President of the Lewyt vacuum company, 1955.https://www.weforum.org/agenda/2016/10/10-predictions-for-the-future-that-got-it-wildly-wrong/

‘There are in fact two things, science and opinion; the former begets knowledge, the latter ignorance”. -Hippocrates