Paroxysms of Sketch


The Outward Face

Updates Blog

Drawings Gallery

Writings & Rants

Lyrics & Poetry

Netherworldly
Horrors!

Chat & Contact

Forum of Paroxysms

Ateisma í
Føroyum

 

 

 

3. Own Reflective Musings

 

In conclusion either side fails to convince me consistently. While I can hardly disagree with most of Searle’s responses to the critiques against his Chinese Room, I do not agree with the premises of his argument. Neither do I believe that his Chinese Room is a valid analogy to what is actually going on to begin with. For instance the assumption that a computer programmed with any scale of decision-tree could ever pass The Turing Test with syntax alone seems to me a bit far-fetched at best. For while I grant that there is a finite number of Chinese Symbols (approximately 5,000) the combinations of these symbols are infinite, at least as long as Searle does not define an upper limit to the length of sequence allowed. And for further consideration each of these symbols – even each of almost any given symbol sequence – might carry multiple meanings, and therefore also multiple responses, in accordance to the entire conversational context they are put in. There is not even any reason to exclude the context of the current cultural paradigm and recent events. For that matter each question would have almost limitless “correct” responses, and individual human beings seldom give the same answer to the same question twice. On these grounds I reject the notion that anything could pass The Turing Test without inherent semantics.

 

I will readily agree that syntax does not necessarily entail semantics. However when it comes to a sensory perception of the world based on ones and zeroes, or even the presence or absence of neural firings (these are analogous to a degree Searle would scarcely admit), I fail to see how semantics can be anything but a specialised form of syntax. Perhaps in order to make myself clearer it is in order to distinguish between purely grammatical syntax and the kind of synergetic or associative syntax I am referring to, which I consider applicable to this argument. After all the meaning of the word “apple” comes only from the association between the neural sequence the word produces and the sequence the image, the taste, the smell etc. an actual apple induces and our ability to recognise these separate experiences as “the same.” Searle’s insistence that The Demon is a separate entity from its “host” and that we should presume what we are trying to prove, because computers do not have these unexplained causal powers of intentionality, is not sound argumentation.

 

On the other hand while Searle might aim too low, Dennett and Hofstadter, aim that much more too high (although granted I am inclined to lean more in that direction). In particular their reasoning as to why just any “hunk of junk” could not be a mind seems a bit void to me. Is the distinction between a static describable mapping and a sophisticated representational system truly so clear-cut? Are there no gradual intermediary states? Is there such a thing as a semi-mind? And even though it might not be considered relevant to the problem of strong AI (although I could argue that it is) Dennett and Hofstadter’s writings left me wondering where exactly these two stand on the issue of determinism. Furthermore I also wonder whether sociological and cultural networks play no role at all in their scrutiny of neural networks.

So since I find both theories to be somewhat lacking, I have composed questions to both sides that I think need to be answered in order for them to be consistent to a satisfactory degree.

 

 

Questions for Searle:

  • What exactly is the cause of the causal powers of intentionality to which you keep referring, and how much so must a neural network be sufficiently like our own in order to obtain these powers?
  • When the word “symbols” can clearly be representative of anything, which is capable of carrying information (zero/one – blue/red quarks?) how can semantics be anything but a specialised form of associative syntax?
  • Since by own admission ‘the [human] brain is a digital computer’[1] and ‘it follows from a theorem proven in 1936 by Alan Turing that any general-purpose digital computer can take on the guise of any other general-purpose digital computer.’[2] why should the same not apply to human beings – consciousness, causal powers, intentionality, and all?
  • How would a perfect simulation of an abstract conceptual function (i.e. consciousness) differ from the “real” thing?[3]

 

 

Questions for Dennett & Hofstadter:

  • How could a consciousness exist in complete isolation?[4]
  • If the instantiation, which is the foundation of what we call consciousness is a deterministic process - as it seems to be in your theory - can this “biproduct” of a completely logical function be said to be a mind at all, rather than just a mirage projected when a process set in motion takes its consequential course to a set destination?[5]
  • If so could we attribute consciousness to anything at all - human beings included - and is this not the natural repercussions of your theory?
  • Where do you draw the line? What differentiates a static mapping from a self-updating system? Just how static does a mind have to be before it ceases being a mind?
  • Would there ever be a point where a computational sequence would simply be too slow to be considered the instantiation of a mind?
  • Have you considered that Searle might be right on another level than you?

 

 

As always explanations of a speculative nature raise equally many questions as they set out to answer. I will just remain patient until the questions answer themselves of their own volition. If someone ever builds a sentient machine, then we will know and most likely not before – if even then. A comforting tautology is that, if it happens, it happens. So I will wait and see what the future brings. What I would like it to bring is another matter entirely. I have a step in mind. It might be a small step, but I think it would be a step in the right direction. I would like to see cooperation between Gameware Development[6] and www.a-i.com to implement the latter’s HAL teachable linguistics program into the former’s Creatures game and A-Life simulation.[7] It is time we breached the distinction between Artificial Life and Artificial Intelligence. Could it be done? I do not see why not. And these simulated creatures would even have at least a rudimentary sort of semantics between the words you could teach them and their simulated environment.[8]

 

Heini Reinert

 

 



[1] Searle, John R.: “Mind, Brains, and Programs” from The Behavioral and Brain Sciences, vol. 3, 1980.

[2] Denett, Daniel C. and Hofstadter, Douglas R.: “The Mind's I: Fantasies and Reflections on Self and Soul” New York 1981: P. 380

[3] I find Searle’s analogy of: ‘No one supposes that computer simulations of a five-alarm fire will burn the neighborhood down (…)’ from “Minds, Brains, and Programs” to be an invalid one since things like a song, beauty or indeed consciousness are another classification of existence than an actual physical fire.

[4] Compare to the Stewart/Cohen idea of “extelligence” dealt with in the illustration of “Heaven”

[5] Compare with what Achilles says in “Gödel, Escher, Bach” p. 316-317

[6] http://www.gamewaredevelopment.co.uk/

[7] http://www.gamewaredevelopment.co.uk/games_more.php?id=19_0_10_0_C

[8] Not actual Searle semantics though, just a simulated kind, but a kind yet to be tried to all of my knowledge.