[cortic]

>As long as we have practically no idea how qualia arise

Qualia or the feeling of consciousness arises from our evolved instinct and ability to personify other humans; turned inward. There is a great amount of evidence to support this from neurological to psychological research.

But even if we didn't know how this came about in the brain, deduction demands it must come about through causal means, which itself is computable and so could be represented in other mediums.