Why Does Planck reject the claim that statisticals laws & the uncertainty relation make the causality of individual physical events meaningless?

How can an intellectual experiment lead to new laws that do not permit direct measurement?

Does Planck prove that scientific progress toward a better understanding of the world is not "an aimless zigzag" (p. 174)?

How does Planck's argument about free will (p. 175) lead to the conclusion that no scientific ethics is possible?

If science is inevitably tied to the personality of the scientist, does this tie help or hinder scientific progress?

Does the "single interconnected system" (p. 175) of natural science and "intellectual sciences" mean that everything has a scientific explanation?