No. A concatenation of many matrix multiplications is… just a single matrix multiplication (that’s what linearity means).
Rather, a neural network is a concatenation of matrix multiplications *and* nonlinearities, i.e. a concatenation of arbitrary linear and nonlinear operations, i.e. an arbitrary operation.
So the relevant question is rather: can consciousness be instantiated by an arbitrary abstract operation?
I’d say it’s pretty clear which way round the burden of proof goes.
idk I think the burden of proof (or, if you like, the burden of persuasion) lies with those who think a concatenation of many matrix multiplications produces consciousness