The spectacular comeback of US president-elect Donald Trump has taken the world by surprise. No doubt people can point to various explanations for his election victory, but in my view, the science of information will pave the way towards deeper insights. Unless the Democrats – and their counterparts around the world – can develop a better understanding of how people receive and reject information, they will never fully understand what happened or successfully fight elections in the future.

There is a fundamental law of nature, known in physical science as the second law. This says that, over time, noise will overwhelm information and uncertainties will dominate. Order will be swamped by confusion and chaos. From a single particle to the whole universe, every system known to science obeys this law. That includes political systems, or societies.

Whenever there is progress in communication technology, people circulate more and more inessential or inaccurate information. In a political system, this is what leads to the noise domination described by the second law.

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