Great Regulars: Kant pointed out we have no access

to the noumenon, the thing itself, uncoloured by our perceptual apparatus. In physics, this leads to a fundamental crisis. Are all these elaborate mathematical models pictures of the world as it is, or merely of how we see the world?

We may suppose that because the models are internally consistent they must be true externally. However, that may be because we work so hard to make them consistent that we rig them.

from Bryan Appleyard: New Statesman: Here endeth the lesson

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