6 ideas
10245 | One geometry cannot be more true than another [Poincaré] |
Full Idea: One geometry cannot be more true than another; it can only be more convenient. | |
From: Henri Poincaré (Science and Method [1908], p.65), quoted by Stewart Shapiro - Philosophy of Mathematics | |
A reaction: This is the culminating view after new geometries were developed by tinkering with Euclid's parallels postulate. |
7522 | A full neural account of qualia will give new epistemic access to them, beyond private experience [Churchlands] |
Full Idea: When the hidden neurophysiological structure of qualia (if there is any) gets revealed by unfolding research, then we will automatically gain a new epistemic access to qualia, beyond each person's native and exclusive capacity for internal discrimination. | |
From: Churchland / Churchland (Recent Work on Consciousness [1997]) | |
A reaction: Carefully phrased and hard to deny, but something is impenetrable. What experience does an insect have when it encounters ultra-violet light? Nothing remotely interesting about their qualia is likely to emerge from the study of insect brains. |
7521 | It is question-begging to assume that qualia are totally simple, hence irreducible [Churchlands] |
Full Idea: One of the crucial premises of the antireductionists - concerning the intrinsic, nonrelational, metaphysical simplicity of our sensory qualia - is a question-begging and unsupported assumption. | |
From: Churchland / Churchland (Recent Work on Consciousness [1997]) | |
A reaction: This is a key point for reductionists, with emphasis on the sheer numbers of connections involved in a simple quale (I estimate a billion involved in one small patch of red). |
7523 | The qualia Hard Problem is easy, in comparison with the co-ordination of mental states [Churchlands] |
Full Idea: The so-called Hard Problem (of qualia) appears to be one of the easiest, in comparison with the problems of short-term memory, fluid and directable attention, the awake state vs sleep, and the unity of consciousness. | |
From: Churchland / Churchland (Recent Work on Consciousness [1997]) | |
A reaction: Most of their version of the Hard Problems centre on personal identity, and the centralised co-ordination of mental events. I am inclined to agree with them. Worriers about qualia should think more about the complexity of systems of neurons. |
1868 | The world was made as much for animals as for man [Celsus] |
Full Idea: The world was made as much for the irrational animals as for men. | |
From: Celsus (On the True Doctrine (Against Christians) [c.178], §V) | |
A reaction: A good remark. It seems to be a classic distortion of European Christianity that the world is made for us, and that animals only exist to fill our sandwiches. |
1867 | Christians presented Jesus as a new kind of logos to oppose that of the philosophers [Celsus] |
Full Idea: Christians put forth this Jesus not only as the son of God, but as the very Logos - not the pure and holy Logos known to the philosophers, but a new kind of Logos. | |
From: Celsus (On the True Doctrine (Against Christians) [c.178], III) |