Posts Categorized: Guest Posts

Guest Post: “Is Reality a Hologram?” by George Musser

I recently recorded two (!) conversations with George Musser for my audio series. We talked about the brain’s perception of space and to what extent our conscious experience is giving us an accurate sense of what’s “out there.” In his book, Spooky Action at a Distance, he discusses the related implications of M-Theory and AdS/CFT duality—enjoy this excerpt from his fascinating book!

Click here to read the excerpt

Guest Post: “The World is Nothing but Change” by Carlo Rovelli

If I observe the microscopic state of things, then the difference between past and future vanishes. The future of the world, for instance, is determined by its present state—though neither more nor less than is the past. We often say that causes precede effects and yet, in the elementary grammar of things, there is no distinction between “cause” and “effect.” There are regularities, represented by what we call physical laws, that link events of different times, but they are symmetric between future and past. In a microscopic description, there can be no sense in which the past is different from the future…

Continue reading