One can imagine a computer simulation of the action of peptides in the hypothalamus that is accurate down to the last synapse. But equally one can imagine a computer simulation of the oxidation of hydrocarbons in a car engine or the action of digestive processes in a stomach when it is digesting pizza. And the simulation is no more the real thing in the case of the brain than it is in the case of the car or the stomach. Barring miracles, you could not run your car by doing a computer simulation of the oxidation of gasoline, and you could not digest pizza by running the program that simulates such digestion. It seems obvious that a simulation of cognition will similarly not produce the effects of the neurobiology of cognition.
John SearleRelated topics
action barring brain case cognition computer digestion digestive engine gasoline last produce real run running simulation stomach thing pizzaRelated quotes
If we could dredge up something forgotten not only by ourselves but by our whole generation or our entire civilization, we should become indeed the boonbringer, the culture hero of the day-a personage of not only local but world historical moment. In a word: the first work of the hero is to retreat from the world scene of secondary effects to those causal zones of the psyche where the difficulties really reside, and there to clarify the difficulties, eradicate them in his own case (i. e., give battle to the nursery demons of his local culture) and break through to the undistorted, direct experience and assimilation of what C. G. Jung called "the archetypal images." This is the process known to Hindu and Buddhist philosophy as viveka, "discrimination."
Joseph Campbell
As scientists, we understand the dangers of nuclear weapons and their devastating effects, and we are learning how human activities and technologies are affecting climate systems in ways that may forever change life on Earth. As citizens of the world, we have a duty to alert the public to the unnecessary risks that we live with every day, and to the perils we foresee if governments and societies do not take action now to render nuclear weapons obsolete and to prevent further climate change... There's a realization that we are changing our climate for the worse. That would have catastrophic effects. Although the threat is not as dire as that of nuclear weapons right now, in the long term we are looking at a serious threat.
Stephen Hawking
We analyzed the first stage of our construction, confined to two-dimensional space, and found it to be as durable and resistant as the earth itself. We build in this space just as we would on the ground, and therefore must take as our point of departure the concepts of gravity and force of attraction, as the foundation of everything built on the land. In PROUN the reciprocity of the effects of gravity [Newton, 'for every action an equal and opposite reaction'] manifests itself in a new capacity. We see that on the surface (plane) of the picture, the PROUN ceases to exist as such and becomes a building surveyed from every direction - considered from above or examined from below. The result of this turns out to be the destruction of the single axis that leads to the horizon.
El Lissitsky
Those who are in ideology believe themselves by definition outside ideology: one of the effects of ideology is the practical denegation of the ideological character of ideology by ideology: ideology never says, ‘I am ideological'. It is necessary to be outside ideology, i. e. in scientific knowledge, to be able to say: I am in ideology (a quite exceptional case) or (the general case): I was in ideology. As is well known, the accusation of being in ideology only applies to others, never to oneself (unless one is really a Spinozist or a Marxist, which, in this matter, is to be exactly the same thing). Which amounts to saying that ideology has no outside (for itself), but at the same time that it is nothing but outside.
Louis Althusser
In case of actual danger, the social democracy banks not on the "Iron Front" but on the Prussian police. It is reckoning without its host! The fact that the police was originally recruited in large numbers from among social-democratic workers is absolutely meaningless. Consciousness is determined by environment even in this instance. The worker who becomes a policeman in the service of the capitalist state, is a bourgeois cop, not a worker. Of late years, these policemen have had to do much more fighting with revolutionary workers than with Nazi students. Such training does not fail to leave its effects. And above all: every policeman knows that though governments may change, the police remains.
Leon Trotsky