Hard to Vary vs Induction: A Response to Kieren

On Twitter “Kieren” has written a short paper where he argues that David Deutsch’s “Hard to Vary” (HTV) criteria for good explanations are really sneaking Induction in via the back door. This article is my attempt to give a short response to Kieren’s argument:

Being unable to vary something implies a constraint. So what is it that constrains a scientific theory? I will demonstrate that the constraint is empirical evidence, or past observations. We can only vary a theory so much before it becomes inconsistent with the evidence at hand (past…