There are two big things you need to know about quantum computers: they are made up of “qubits”, each of which are fiendishly difficult to make; and they need lots of them working together in unison, which is harder still.
Queensland Treasurer Cameron Dick wasn’t wrong when he likened building a quantum computer to the Apollo mission to the moon. It’s that difficult, and that costly.
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John Davidson is an award-winning columnist, reviewer, and senior writer based in Sydney and in the Digital Life Laboratories, from where he writes about personal technology. Connect with John on Twitter. Email John at jdavidson@afr.com
