Tag Archives: general relativity

The Time Problem in “Cosmology from Quantum Potential”

Ahmed Farag Ali and Saurya Das recently published a paper in Physics Letters B, “Cosmology from Quantum Potential,” in which they discuss the reasonableness of a liquid quantum potential contra big bang.  You can imagine something like this:

quantum potential

I whole-heartedly believe a number of their “interpretations” in the paper are correct.  However, I also find some of their thoughts extremely puzzling, in light of drawing certain interpretations to their logical conclusion, as one philosopher, Kant, has hundreds of years ago.  I will give a little technical breakdown of the paper —just bear with me through the math/math-speak, which I only include for the sake of the clarity that my colleagues in the sciences would prefer—, and then discuss issues I see.  Continue reading

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Filed under Cosmology, Philosophy, Philosophy of Physics, Physics, Science, Speculative Realism

Einstein at Leyden (1920): Making Sense of His Reversion to Ether

Einstein is often touted as the physicist to annihilate the idea of the ether.  This is peculiar, because it is as though the world stopped listening to his opinion on the matter prior to his reflections on general relativity (GR).  Einstein never got too excited about proclaiming that an ether, after the conception of GR, is necessary; but he did, nonetheless, make clear arguments, the details, philosophical and historical, I will try to fill in —if only even a few of them.  Continue reading

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Filed under History of Physics, History of Science, Philosophy, Philosophy of Physics, Philosophy of Science, Physics