Hi @Razeen,
In my opinion, the paper is about Maria’s astute observation of the parallel between the higher dimensional computational space in quantum computing and the higher dimensional feature map space in the kernel method.
I think the paper is really valuable in that it recognizes the power of quantum computing as information processing in higher dimensional computational spaces from {0, 1} to C x C (without taking the projective space into account).
Any quantum algorithm, in fact, is an application of her idea already.
I believe that examination of quantum computing from the computational space (solution space) perspective will unlock more tools that have not been thought of yet.