Shine on You Crazy Doubter

The English language is a peculiar beast. How often do we say things we don’t mean or things we don’t understand? A classic is the ‘I could care less’ line, which has so twisted ‘I couldn’t care less’ that now the meaning has changed to actually suggest that someone really could care less, but perhaps not much. Such is the way language evolves, purists be damned.

Yesterday I read an exchange that highlights this plasticity. One person wrote that a lack of evidence would “shine doubt on” a particular study. My immediate reaction was to think, no! And no again! Doubt is dull and certainty is  . . . bright. Doubt clouds our vision, right?

Well, maybe not so much. It’s all a matter of perspective. Doubt isolates weak hypotheses. It identifies flaws and reveals implications. Doubt, we could say, is the torch of knowledge, without which we couldn’t see beyond our presumptions. So, yes, shine doubt on everything, so we can see more clearly. Purists be damned.   

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