[bawolff]

I can't help but feel this amounts to: the chinese state might be doing something to futher some sort of geopolitical end, but we don't know what that end is or what the something that they are doing is.

And you're right, the chinese state probably has various plans to take advantage of whatever advantages they think will be good for their interests (just like every other country). But if we have no information or even plausible theories, what good is this baseless speculation? Its not exactly news that China is a rising super power and probably has schemes within schemes. Maybe this one is the obvious one, that a working quantum computer would be very prestigious and economically valuable to the first country to get there. Or maybe not. But if it isn't the obvious one, guessing at utter random without even reading up on the underlying paper almost certainly will not come up with whatever the scheme is.