Tim Andersen, Ph.D.The end of the universe, not the beginning, may be the moment of creationLast week’s article got me thinking about time inversion and I looked more carefully into arrow of time reversal experiments like this one…·4 min read·Jun 10, 2024--23--23
Tim Andersen, Ph.D.How time inversion really worksTenet came out in 2020 which seems like a lifetime ago now. The Christopher Nolan sci-fi thriller quickly became divisive partly because…·7 min read·Jun 7, 2024--4--4
Tim Andersen, Ph.D.Zero-point energy may not existIn a previous post, I talked about how there might be more ordinary explanations for the Casimir effect that do not rely on vacuum energy…·7 min read·May 23, 2024--13--13
Tim Andersen, Ph.D.Dark matter may come from the fifth dimensionAfter years of tinkering with tensor calculus, my paper explaining dark matter with a 5th dimension has been published in the peer-reviewed…·5 min read·May 13, 2024--28--28
Tim Andersen, Ph.D.The Casimir effect may not come from vacuum energyRecently I saw a post on twitter claiming that AI could be powered with quantum vacuum energy. The post was accompanied by a figure from a…·6 min read·Apr 29, 2024--9--9
Tim Andersen, Ph.D.Dark energy may come from the thermodynamics of spacetimeThe recent DESI results, which are quite preliminary, suggest that dark energy, the substance that makes up the majority of mass in our…·7 min read·Apr 23, 2024--9--9
Tim Andersen, Ph.D.A light beam falling into a black hole may help us understand timeWhat would it be like to catch up to a beam of light? That was the question that the 16 year old Einstein asked himself. Ten years later…·9 min read·Mar 20, 2024--13--13
Tim Andersen, Ph.D.This supercollider in space may give us the physics breakthrough we needThe current plans for the Future Circular Collider are for it to be about 90 km in circumference, over 3 times longer than the current…·7 min read·Feb 28, 2024--11--11
Tim Andersen, Ph.D.Space and time may be two dimensional at the quantum scaleMost people know we don’t have a working theory of quantum gravity, but it is often hard to explain why. The simplest explanation is that…·10 min read·Feb 21, 2024--19--19
Tim Andersen, Ph.D.Does the universe work like a TARDIS?I recently came across this problem on X/Twitter.·6 min read·Feb 6, 2024--21--21