Using the Concept of Signal-to-noise Ratio as a Metaphor The ratio of useful or true information to false or irrelevant information

Daniel Smachtenberger, when discussing the pollution of the information ecosystem with misinformation and disinformation in his talks on the War on Sensemaking, says things like:

I’m trying to make sense of things because I have to be able to parse signal from noise.

We would hope, though, that there are some sources of high signal, low noise true information like maybe scientific journals.

There is always some signal.

He is using the term signal-to-noise ratio as a metaphor. It’s a useful one that I write more about in my blook.

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