|Humean World: a world without causality - phenomenally like our world. See also David K. Lewis, Humean supervenience, Humean mosaic.|
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Humean world/Chalmers: is a world which is phenomenologically indistinguishable from ours, but where there is no causality, is not excluded. This is the case because facts about causation are not logically supervening on physical facts. Processes could turn out to be cosmic coincidences. Beliefs about causality are not as imposed on us like beliefs about biology (as dependent on microphysical structures).
The Conscious Mind Oxford New York 1996
Constructing the World Oxford 2014