Showing posts with label evolution. Show all posts
Showing posts with label evolution. Show all posts

Saturday, February 24, 2007

Dream Language

Reconsidering the idea of language as an emergent phenomenon, as elaborated upon by AI researchers and new media artists, I realized something about dreams.

Words are no good for describing dreams because language has evolved in the context of a persistent world — a world that can be shared and reflected upon without the observational act interrupting anything (at least on a macroscopic scale). Dream situations don't have any of these characteristics.

Friday, January 26, 2007

Real Artificial Improvisers

Most artificial improvisational agents are restrained by their creator's naive definition of improvisation. If improvisation is understood as a choice amongst possibilities rather than simply the act of creating, it's obvious why: the choice of most agents is not their own, but their creator's. The agents simply carry out the creation. A true improvisational agent would be able to develop its own preferences. The closest thing I've seen to this yet is the Bacterial Orchestra.

Sunday, October 15, 2006

The Game and Society

I just noticed some guys outside playing American football (being a typical overcast autumn day, this isn't surprising). Calling the ball a "pigksin" reminds me of our formerly ubiquitous nomadic lifestyle. I wouldn't be surprised if the appeal of many sports is due to the role each player takes in relation to the ball — becoming a chaser, defending it from others, etc. — and the similarity this role bears to the original game hunt. If evolutionary theory is on track, then games like football are the highest fulfillment of our deepest instincts (at least in industrialized societies).

It's also interesting to note the place of the hunt in art. It was of primary importance to the first artists, but slowly fell by the way-side as societies were established — making way for themes relating humans to each other and the gods. You could say all these things make sports photographers the modern day equivalent of cave painters, but the cave paintings are much more of an abstract art than documentary.

Thursday, September 07, 2006

Arboreal Proliferation

It's really no wonder that trees survive — there's so much surface area for them to soak up life. It's interesting to see the variety in trees, and how they all get along in their own ways. The big ones need more sun and water and nutrients, which they get because they're bigger — and the small ones don't need as much, but they still get it.

Friday, July 14, 2006

The Evolution of Communication

From Causes of Color:

To attract the potential pollinator to that particular blossom, availability of nectar has to be advertised to the butterfly. This is displayed in the color of the petals. The color of the nectar guide of Aesculus hippocastanum [horsechestnut] changes from yellow to red when nectar is no longer in production.
I've heard of flowers having markings to attract insects, but never of those markings changing, like some organic "no vacancy". Why would they want to do that? It seems too difficult, why not always advertise "vacancy" and let the insect figure it out themselves? This must be a sign of ID, right?

The meanings of the color can only exist if they change in the first place. This change happens to be evolutionarily beneficial: imagine a bunch of horsechestnut flowers; only a few are producing nectar. If the insect visits them at random, there is a low probability of fertilization and reproduction. However, if there is some sort of signal coupled with the production, the insect will adapt to this (possibly by learning, more likely by selection over multiple generations).

The color only has meaning when it's related to some other property. Language can only evolve when there is a definite semantics; and when this is useful, it will necessarily evolve. This makes useless and ambiguous language — nonsense and poetry — the zenith of communication.

(Update: Bruce MacLennan has some done some interesting research studying the emergence of communication within artificial species, echoing these ideas. See his more recent summary or the original from 1990.)