Dear Tommaso,
Re "I don't buy the complexity viewpoint":
As you know, in my essay I claim that there are at least 3 invalid assumptions underlying the ideas of physics (and that these perverse and unenlightened ideas about the nature of reality underlie the attitudes that are destroying our planet).
Well, another invalid assumption of Wolfram, Chaitin, and physics in general, is that numbers just exist, no explanations necessary. This is a Platonic viewpoint.
But I think that there is no Platonic realm - this universe is all there is. So given that restriction, what are the numbers that are found when fundamental reality is measured; what does this mean about the nature of reality? I think that there is necessarily a physical reality behind numbers (as I try to explain in my 2013 essay): I contend that numbers are (what I call) hidden information category self-relationships. I think the information category/information relationship way of looking at things is a better pointer to the nature of reality than e.g. the cellular automata viewpoint.
I contend that information is indistinguishable from/identical to physical reality; and that information is subjective experience. So, at the foundations of reality, information is subjective experience of e.g. information categories like mass and charge. I also contend that the physical outcomes of "free will" can only be represented as the creation of new (usually temporary) "rules", where law-of-nature rules are information category relationships. I contend that the views of Wolfram and Chaitin etc. imply that the universe is a very dull place, where nothing truly new ever happens: the "truly new" being new "rules".
Best wishes,
Lorraine