Multiple physical laws and constants must be finely tuned for the universe to be inhabited by advanced forms of life.
A sad note in Weinberg’s life was that his philosophical framework prevented him from seeing the design behind the physics he studied.
Hossenfelder’s strongest argument is that many fine-tuning parameters cannot in fact be quantified.
I said, “You mean there is a fifth force — why didn’t you say so? Just give me the equations for this force and I will add it to my model.”
Some scientists respond, “Well, there must be an enormous number of universes and each one is a little different. This one just happened to turn out right.”