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30 August 2018

The Unknown

No one could have foreseen quantum mechanics. It came out of a funny little side project - trying to understand the photoelectric effect (roughly why some frequencies of light can make electricity flow in some materials). Newton had explained the wave-like nature of light. He did so just down the hill from where I currently live!

Einstein, who published four revolutionary papers in 1905, explained that the energy of the light came in packets or "quantum" (i.e., specific amounts). In surfer jargon, light waves always come in sets. And those sets can act as objects. This is what he got the Nobel Prize for.

Understanding that light worked like this led to a series of insights into the nature of the subatomic world that changed everything. Eventually, it resulted in electronics. And electronics has changed our world beyond recognition. Even in my lifetime! (e.g., the integrated circuit was invented after I was born)

In 1905, for a brief period, no one could claim to have a deeper understanding of reality than Einstein. And not even he could have predicted any of this.

When we think about the world a century from now, we have to pause. The likelihood is that something completely unforeseen is going to change things in ways we cannot imagine; that no one can imagine. We cannot factor this into our calculations. We cannot make allowance for it. We cannot even say from which direction or field it will come. It is completely unknown to us. No one knows or can know.

All we know is that throughout human history, and with increasing frequency, new ideas have emerged that have changed everything. Its not always technological. Think of the impact of fascism in the 1930s.

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