Archive for the ‘Evolution’ Category
Easy Explanation of Kant
Posted by Tanasije Gjorgoski on April 7, 2008
Posted in Evolution, Philosophy, Silly/Funny | Leave a Comment »
Monkeys Which Are Product of Intelligent Design
Posted by Tanasije Gjorgoski on November 20, 2007
Some monkeys might have evolved, but not those!
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Evolution
Posted by Tanasije Gjorgoski on January 24, 2007
Dawkins, The Selfish Gene, 1976:
Philosophy and the subjects known as ‘humanities’ are still taught almost as if Darwin had never lived. No doubt this will change in time.
Fodor, Information and Representation, 1990:
Philosophers who pay for their semantics by drawing checks to Darwin, are in debt way over their heads. Or so it seems to me.
Posted in Evolution, Meaning&Reference, Philosophy | 3 Comments »
Evolution and Conscious Experience
Posted by Tanasije Gjorgoski on January 14, 2007
A week ago Jeff at Minds, Meaning and Morals, wrote a post about how evolution+epiphenomenalism=weirdness.
Here is my contribution to the topic. It is simple argument, so I guess lot of people have come to it after short consideration…
The combination of evolution and epiphenomenalism yields this weird conclusion:
That evolution made us so that we act as if we have conscious phenomenal experience (For this or that reason, we end up writing about this “conscious phenomenal experience”. Maybe Dawkins can figure out why do our genes prefer survival-machines who talk about phenomenal experience.), and only by chance (as consciousness doesn’t affect the world if we are epiphenomenalist) made us so that we *actually have* conscious experience.
What should be understood by “chance” is anything that is not metaphysically necessary. (e.g. even some kind of psychophysical laws would count as chance.)
How do epiphenomenalists respond to those problems?
UPDATE:Brandon pointed in the comments that the phrase “acting as if we have conscious experience” doesn’t make sense in argument against epiphenomenalism, and I agree, so scratch that sentence. What I was referring by that phrase is those acts that we usually take as being there because of the conscious experience. But there is no real need to refer to them in that way. We could instead enumerate those acts… What I meant is e.g. writing a paper or book on the issue of phenomenal experience or qualia, discussing and defending that we have conscious experience,etc…
Posted in Consciousness, Evolution, Philosophy | 3 Comments »
Degrees of freedom in evolution
Posted by Tanasije Gjorgoski on May 22, 2006
In a previous post I wrote about the program – Gene Pool by JJ Ventrela and others.
If you haven’t checked it, you can get it here.
The program itself, as its author says, focuses on examining how the sexual selection (i.e. the criteria of what looks attractive) when put together with natural selection (the ability to stay alive and reproduce) affects the evolution of locomotion in swimbots.
Looking at those swimming bots today, I was thinking what kind of additions would be nice to see in this application. Here are my thoughts…
The natural selection in the program is based on the ability to stay alive and reproduce (which is basically ability to move towards a selected mate). There is no predator/pray relation – in the simulation there are just herbivores (we can imagine dots which give energy as plants). What would be interesting is to see another type of swimbots – carnivores, which would live in same simulation, but which would not eat the dots, but the herbivore swimbots themselves. Having those two types whose evolution would be closely connected might serve as “boost” for the evolution. Of course the number 2 is not magical, so maybe food chain of several levels would give interesting results also. From how I understand that program works, this shouldn’t be hard to accomplish.
The program allows the user to “tweak ecology”. Among the settings there are such like “swimbot hunger threshold” and “swimbot energy % to offspring”. The user can tweak those per whole pool, but it would be interesting to see how the setting affects the evolution. How? By changing those parameters to be from general for all pool to internal parameters for every swimbot (of course they get to mutate, and be transfered through genes).
This also opens interesting question about the degrees of freedom of the evolution in the virtual simulations – the evolution in the simulations will always happen in some abstract space of possible mutations… It is closed space, and there is just given finite number of mutations, the possible animals that can develop are limited in this abstract space. I wonder in this context, if in the nature there is also similar abstract space of possible mutations, which is set once for all, by the mechanism of the mutations in the evolution, or if this mechanism in the nature itself changes… Does the life and evolution in nature transcend this kind of abstract space?
Technorati Tags: evolution, gene pool, simulation
Posted in Evolution, Philosophy, Technology and Software | 5 Comments »
Are humans animals ?
Posted by Tanasije Gjorgoski on March 24, 2006
Consider the following statements:
- Hedgehogs don’t have spines.
- Hedgehogs are enormous animals.
- Hedgehogs are not animals, but like rabbits (in Putnam, Is Semantic Possible) they are robots controlled by Martians.
- Hedgehogs are not material things, but they are massive hallucination induced by Martians.
Intuitively to me, as a person who thinks that has mastered the usage of term “hedgehogs”, the first two sentences sound much more weird then the last two. While I have no problem with the last two and I know what they mean if someone claims they are true, I’m not sure what would one mean if he/she claims that one of the first two is true. It appears to me that in that case the person would probably be talking about something else and not hedgehogs.
Does this mean that theories about essence (surely ontological status falls into the essence) are secondary to the appearences when we talk about things?
Well, not necessarily, I would say. The opposite example can be shown about the concept of whales and humans. I asked my daughter(2y) if humans are animals, and she is sure that they aren’t. That is the level of appearences. And whales are fish…
But in those cases society has success in pushing the essence (or at least theories about it), in front of the appearences. Hence we know what one means when one says “humans are animals“, or “whales are not fish“. We know that the person is not talking about appearences, but about the essence (or theories of). The concepts of “animals” and “fish” in those cases has moved from the appearences, to the evolutionary/biological theories. Animal and fish don’t mean just what they did before, and that’s why it is possible to say “whales are not fish”, and “humans are animals”
So, the answer to the question “Are human animals?” depends on the underlying paradigm within which one answers it – the concept of “animal” is not the same one for the evolutionary biologist, and for my daughter. That’s why they will disagree.
And while on the first glance, one might say… “the essence of the concepts is what is important, the appearences are just appearences”, the issue is not so simple, as many of the concepts have the appearences as their root. So, if we want to continue using those “fuzzy” concepts, we will have to accept to live with multiple paradigms.
Posted in Evolution, Meaning&Reference, Philosophy | 2 Comments »
Gene Pool
Posted by Tanasije Gjorgoski on March 23, 2006
Gene Pool is evolution simulation program for Windows. It models (and shows in nice graphical way) the life of the so called “swimbots” – virtual organisms who live in virtual pool.
Swimbots are made of rigid parts, which are connected by joints. Joints are rotated by motors.
The genes of the swimbots affect their morphology, and affect how their motors react to their senses. And senses are basic… When they are hungry they sense in which direction is the food, and when they are not, they sense in which direction is the most beautifull swimbot.
By moving their motors, swimbots loose energy, and after their energy falls under certain level they become hungry. When they touch the “food” particle, they eat it , and gain energy. When they touch other swimbot to which they are attracted they combine genes with that swimbot, and the new swimbot is born.
And, that is generally it. You download the program, you start it… you get a pool full of swimbots with random morphologies and movements. Something like this:
or this:
And after some time, some trait of evolution gets better, and you get pool full of simmilar creatures, something like this:
To get to the place where “the action” is, click on the “View” button in bottom-right part of the screen, and choose “Most prolific”.
Posted in Evolution, Technology and Software | 3 Comments »























