David Thornton
Aug 27, 2017 · 1 min read

Nice article, Ethan (as always). A couple of thoughts, though:

  • One could comment that any black hole with a Hawking Temperature lower than that of the ubiquitous Cosmic Microwave Background (CMB) Black Body Temperature will continue to grow in mass (though, of course, the CMB Temperature is falling as the Universe continues to expand)
  • The final fate of an ‘evaporating’ black hole is actually rather uncertain, since as the black hole becomes smaller the curvature of spacetime near the Event Horizon increases and the mathematics used to predict Hawking Radiation begins to fail. We really need a full and consistent theory of quantum gravity to make a firm prediction (though your description of a black hole’s last second is certainly dramatic, appealing, and fun!).
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