Emoji Question…Are today’s rudimentary quantum computers already on the verge of significant feats beyond the reach of traditional computers? Or have their capabilities been exaggerated, as practical uses for the technology recede into the future?

China claims to have made a major breakthrough but western experts say any commercial benefits are still years away.

…For some quantum companies, the startling Chinese claim about online encryption was a sign that the technology’s big moment is drawing nearer. But for the doubters, the apparent impracticality of the research will serve as confirmation that quantum computing is still an impressive science experiment rather than a practical technology…

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