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Message: <blockquote data-quote="lovethebomb" data-source="post: 26822769" data-attributes="member: 531830">You need AdS CFT to make this speculation work. That's where I get a little less enthusiastic.Also, this question: “why aren’t BHs expanding invasively?” always sounded off to me. Yes, the universe is quite old but BHs do not suck matter into them so ubiquitously. On top of that they can also decrease mass by way of radiation. So to say that BHs should be overbearingly large now is akin to saying that night sky should be brutally incandescent because there are immensely many stars in the universe.If this is the case (which is boring I know), then event horizon is simply following the known Schwarzschild dynamics.I admit though, this “inward expanding” next to the Hubble expansion which is “outward” looks really intriguing.Unrelated comment...I might have my reservations about string theory but my god Lenny is such a good teacher when it comes to good old classical field theory. Everyone should read his “Theoretical Minimum” series. Especially people who are looking for a good entry point to the actual subject.</blockquote>

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