Hey, that paper is in fact a pretty decent defence of Panpsychism. But you are right. Being a pansemiotician myself, I would fundamentally disagree with it.
:)
So the guts of my objection would be that nothing can be solved by positing a dualism of substance. In metaphysics, progress is always achieved by discovering the formal complementarity at the heart of every phenomenon. And arguing for two kinds of substance is making a brute claim about there being two types of the same general thing (a substance) that have no particular reason to be locked into a mutually formative interaction.
So positing a microphysics of matter plus mind cannot work. It has no internal logic. There is nothing to show how the existence of one requires the existence of the other. There is no holism or unity that binds these two ontic catergories. This is Panpsychism's essential problem. Matter and mind can't be shown to be the two halves of one whole, the two aspects of the one symmetry breaking.
With pansemiosis on the other hand, we are talking about the symmetry breaking that is matter and sign (or matter and symbol). And now the two categories are related as a symmetry breaking dichotomy. The two-ness is a fact of logical necessity rather than merely a brute and arbitrary claim.
Materiality is all about material degrees of freedom - the entropy to be dissipated. It is physical dimensionality.
But then the very fact of materiality makes room for its complementary opposite - information or the immateriality of symbolised meaning and sign relations. As I have argued in another thread, the universal expressiveness of a language is due to an extreme constraint on dimensionality. When materiality is reduced towards the ideal of a zero-D point - as it is with any serial code - then this active lack of materiality becomes the birth of the something different, the something opposite, that is the "immaterial" realm of symbols. Or negentropy.
Of course the play of signs, the play of symbols, still has to obey the second law. It takes work to run a computer or brain. Both must produce a lot of waste heat. But from the point of view of the play of symbols, the entropic cost of every bit, every operation (like executing a program or uttering a thought) is effectively the same. There is always a cost, but it is immaterial in not making a difference to the computation or the brain activity.
So the pansemiotic view can argue it's merit on first principles. Matter and symbol are formally complementary in that the existence of one makes the existence of the other a necessity. You couldn't have a material world and not then have "immaterial" sign relations with that world as a logical possibility.
So in general you start by arguing that reductionism is a failure - its reliance on a rather mystical notion of emergence being a symptom of that. I of course agree. Emergence is always itching to be reduced back to supervenience in the mouths of reductionists. A reductionist only wants to believe in an emergence that is sanitised by quote marks.
And then you argue that if monistic reductionism fails, then maybe mind - that horribly ill defined notion - is the second substantial ingredient that must be discovered in the microphysics. And yes, if all else fails, perhaps we have to accept such a brute fact posit.
But all else hasn't failed. Science already has a science of sign. It is perfectly normal in neuroscience or biology to treat the phenomena of life and mind as sign relations with the material world.
And the matter~symbol dichotomy has the required Metaphysical validity. Sign - living in its zero dimensional realm of digital bits - can be shown to be the outcome of material constraint taken to its physical limits. Negentropy is defined as the inverse of entropy.
The rapid emergence of an information theoretic approach to "everything" - microphysics and cosmology too - shows that this is the universal Metaphysical duality that is working. Information encodes the Janus face relation between sign and matter. Information theory describes entropy as both epistemic uncertainty and as ontic degrees of freedom. The two sides of the deal are now mathematically joined at the hip. Their essential complementarity has been recognised as a quantifiable quality - the holy bit.
;)
But Panpsychism has not fared so well. There is still no metaphysics, let alone physics, connecting the brute and disparate categories of matter and mind. As a possibility, it was raised a century ago and has proved a complete dud.
Pansemiosis, on the other hand, has become science's new dominant paradigm - even if cashing out all that which is implied is still a work in progress across the span of the sciences.