Why Measuring Stuff Matters

We live in a world in full of vast structures which change imperceptibly slowly, and tiny structures which change imperceptibly quickly. Measurement extends our senses into these realms.

We live in a world in full of vast structures which change imperceptibly slowly, and tiny structures which change imperceptibly quickly. Measurement extends our senses into these realms.

One of the wonders of human psychology is how we deceive ourselves about the true nature of the world.

One of the triumphs of the human psyche is that – even while trapped within our own deception – we can break through and discover uncomfortable facts about the world. Facts that allow us to understand our limitations and learn how to overcome them. Experiments which allow us to experience our own blind spots are a classic example, but in fact we go much further than that.

We trust our measurements more than we trust ourselves. From basic measurements of length and time and mass, we have developed an infrastructure that allows us to make measurements – often simple in themselves – through which the nature of the Universe is revealed to us – despite our very human biases and blind spots. Sorry that sounds so pompous – but that’s how it is!

We make measurements and then we trust them more than our own eyes. If sensors tell us a light is flickering 100 times a second – we believe it – even though our eyes see nothing. If measurements indicate that continents are moving apart at 2 centimetres per year – we believe them – even though we experience nothing.

We have developed techniques of measurement that allow us to see ourselves and our world in richer detail than at any time in human history. Looking just through the open tabs on my browser I see have measurement ‘stories’ on all these themes:

In each case above, measuring things and comparing them with our expectations doesn’t simply provide a number – it allows us to view the world in new ways. And it allows us to extend our vision into the realms of the otherwise imperceptible, or the overwhelmingly vast. And that is why measurement matters!

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