Hi Lorraine,
thanks for your reply.
Concerning "normal", some physicists would say that "normal" is everything that can be captured mathematically, hence "normal" for physicists is "stable patterns" (aka "laws"). Additionally these physicists would say that there are no "not normal" things existent, because they can't exist - per definition. Consequently they say that everything can be captured mathematically, in principle.
Sabine Hossenfelder for example in her video about free will argues that there isn't that free will, since in a strictly deterministic world "will" can't be free, whereas in a random world free will couldn't be "will" (and also couldn't be free in the sense humans think they have free will).
Sabine Hossenfelder says claiming that humanly experienced free will is real and not an illusion is against established science and hence is a false assumption. She claims that scientists KNOW that they can derive from the physical laws of the many constituents the brain is made of (and reality is made of as a whole) what the whole object does.
But this is unproven and in my opinion also an unprovable claim, since no one at present really knows that human beings really CAN derive from the physical laws of the many constituents the brain is made of what the whole object does. That claim has for starters to be proven true by comparing a (unimaginably complex) mathematical prediction to an (impossible) experiment.
Sabine Hossenfelder nonetheless arrives at her conclusions by using an unknown, or better termed an impossibility, for redefining that in-principle unknown as a known - thereby circumventing that impossibility. She assumes that everything that exists is "normal" and that "not normal" things do not exist. But this is only a belief, founded in the assumption that "causes" in no way can be "causa finalis". For deciding what is "normal" one had to have something to compare it with. Hossenfelder seems to define the fact that there at all exists this world as being "normal". But how could one do that convincingly without comparing our world at least with some other counterfactual, "not normal" worlds?
The fact that somebody put a turkey in the oven that now is deliciously brown and crispy must, according to Hossenfelder, be considered as being caused by the strictly deterministic interplay of an unimaginably huge amount of single particles and their interactions and by nothing other. The counterfactual element of such physicist lines of reasoning come in by belief and by definition. They say that we KNOW whereas they merely believe to know, for example they believe that a deterministic world - maybe together with some interplay of quantum mechanical uncertainty of particle behaviour - is all that exists and all that can exist in principle. Again, to make such a huge claim one had to have something to compare our world against - and that something can always only be a counterfactual thing in our minds when it comes to compare a totality to some other "totality".
Hence, although I agree with you that
"physics can't explain the existence of genuine agency and consciousness."
or more elaborated physics can't explain the existence of Boolean logics these physicists use every day, I would not agree with you that world views only come about by analysing input from our senses. These world views often also have to come about at least partly by beliefs, since otherwise we just had to have one world view, namely the one that consistently and completely answers all questions that can be meaningfully posed about our world and about existence in general.
There is undoubtedly much fear in the world, presumably in part because humans are able to believe certain things that in reality are no facts. I am unable to sort out all these facts from fictions, since I am a person that itself only believes in something and does not believe other things. Again, for deciding whether my beliefs are reasonable one had to sort out facts from fictions, one somehow had to prove all beliefs to be wrong other than the one that then remains!
So, deciding which beliefs are true and which are false amounts to being a matter of provability, whereas I have argued in several posts and replies that I think that provability has its in-principle limits. For example how could one ever prove that a certain line of reasoning of a human being was unambiguously caused deterministically exclusively only by an exactly definable precursor particle configuration in the brain? Or how could one ever prove that Boolean logics (your IF...THEN connections for example) can emerge exclusively only out of particle configurations? For being able to do this I think one at the same time had to answer the question why there are these deterministic laws at all - and one had to do this with using Boolean logics! - what then simply would amount in the statement that Boolean logics cannot explain its own existence other than by circular reasoning.
Nonetheless it is this kind of circular reasoning that is adopted by the deterministic world view in that it presupposes what it wants to prove. I tried to make this clear with the example of how Sabine Hossenfelder handles the possibility of human free will - it is defined as impossible due to the "self-explanatory" power of strict determinism. However, when asking whether or not that strict determinism really can explain itself, then one must confess that it cannot be "self-explanatory" as long as it does not explain the existence of Boolean logics as something that meaningfully emerges from the underlying mathematical laws of that strict determinism. Thereby I do not mean from the discipline of mathematics as such, but from the distinct physical laws that so far had been discovered.
It may be that due to in-principle unprovability of certain things we are forced to believe in certain things to control human angst (fear). The question then would be why there are people that are more or less free from that human angst. I think that one answer could be that they may not think too much about what we discuss here. Or in other words that they rarely do ponder about profound "if...then" questions because they consider them as relatively useless - for themselves.
That's another rather lengthy post from me, but I think my lines of reasoning have to be considered when thinking about free will and whether or not one should define it as an illusion or defining it as really being existent in this world (to a certain degree of course).