Pluto might be a planet again. Or not.

Pluto disappeared from our local Jodrell Bank Radio Telescope visitor centre some years ago, when it was decategorized from being a planet. It no longer seemed to exist, which seemed a bit unnecessary. Also, as one interested in astrology, Pluto is a planet of great significance here, and has certainly not disappeared from use.

So I was very interested to see this great post by Matthew Wright. He’s also questioning our tendency to classify everything into categories that may then obscure things of real significance, such as the astrological significance of Pluto!

Matthew Wright

Remember Pluto the planet? And then Pluto the not a planet? Well, it’s back. Possibly. Apparently an informal forum held the other week came down in favour of reinstating the ‘planet’ classification. Of course these things carry little weight with the International Astronomical Union.

Pluto in true colour, as seen by New Horizons. NASA, public domain, via Wikipedia.

What interests me is the way that the debate over whether Pluto is, or is not a planet also sums up the biggest flaw in modern human analytical philosophy; our need to categorise everything and fit it into patterns and slots as a part of being ‘scientific’.

In a way this is not surprising. We appear to be hard-wired to see patterns everywhere. Sometimes they even exist. The ‘evolutionary psychological’ explanation is that it conferred an advantage during our very, very long hunter-gatherer period. Humans who were better at identifying patterns were…

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