This week’s entry covers the exciting ACT data release, the mutual tension between ACT, Planck, and SPT, and a flexible parametrization of black hole shadows based on a class of curves known as limaçons. Have a nice weekend!
Physics
My thoughts on what the Hubble tension really is, based on George Efstathiou’s “To H0 or not to H0?“, arXiv:2103.08723.
