Tuesday 22 March 2016

Quantum computing

Lately there has been huge media interest in the dispute between Apple and the FBI in regard to encryption technology. If the FBI or NSA could break strong encryption, then they would do so, copy the data and run it through a cloud of government computers to read the files. But they cannot do this because encryption works. In spite of this increasing tension between Apple and the authorities in regard to encryption, technology marches on. What is utterly indisputable is that technology will one day break today's approach to data encryption. A new field of technology is emerging from the lab called quantum computing. Quantum computing is completely different from today's digital computers but it is still in its incipient stages. Instead of using 1s and 0s like digital technology does, quantum computing uses something called a qubit, which can represent many values simultaneously. Quantum computing today is roughly as advanced as digital computing was in 1971 when Intel created the first microprocessor. But technology evolves much faster in 2016 than it did back in 1971. Quantum technology will be expensive to begin with but will get progressively cheaper and simpler, just like all technology. On top of quantum computing, quantum cryptography will revolutionize encryption as we understand it. We have a lot of ground to cover before this becomes mainstream but we are getting closer every single day. THe video by theoretical physicist Lawrence Krauss below gives a brief but informative explanation of what quantum computing is. Technology marches on. 

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