Full Idea
It remains plausible that consciousness arises from a physical basis, even though it is not entailed by that basis.
Clarification
Which would make consciousness 'emergent'
Gist of Idea
Perhaps consciousness is physically based, but not logically required by that base
Source
David J.Chalmers (The Conscious Mind [1996], 2.4.1)
Book Reference
Chalmers,David J.: 'The Conscious Mind' [OUP 1997], p.125
A Reaction
Personally I find this totally implausible. Since every other property or process in the known universe seems to be entailed by its physical basis, I don't expect the mind to be an exception.