I certainly learnt a couple things about general relativity from that article (e.g. the &quot;modern view&quot; (meaning largely, the view from string theory) that &quot;we understand Einstein&#x27;s equations just as the equations of an &quot;effective field theory&quot;&quot;), although it was way over my head.<p>That blog (Luboš Motl&#x27;s) has an amazingly large number of long and technical or topical articles on physics. I found this one on Boltzmann and thermodynamics especially insightful and relatively non-technical:<p><a href="http:&#x2F;&#x2F;motls.blogspot.co.nz&#x2F;2013&#x2F;02&#x2F;ludwig-boltzmann-birthday.html?m=1" rel="nofollow">http:&#x2F;&#x2F;motls.blogspot.co.nz&#x2F;2013&#x2F;02&#x2F;ludwig-boltzmann-birthda...</a>