From David Norman, Ipsach, Switzerland
Ed Subitzky says that if we live in a simulated cosmos, then major anomalies in physics could actually be bugs in the programming (Letters, 28 March).
In the same issue, your columnist Chanda Prescod-Weinstein (p 24) explains how different measurement methods return differing values for the Hubble constant, which describes the expansion of space-time. Of course, there is absolutely no connection here.
