The Myth of the Moth

On Richard Osman’s House of Games this evening we were informed of the interesting fact that a moth once found inside a computer is why computer bugs are so called.

It is a good story but it is not a fact.

The word bug had long been used to denote some form of malfunction – as in a film from several years before the moth was found:


The Oxford English Dictionary has earlier yet examples:

1875
The biggest ‘bug’ yet has been discovered in the U.S. Hotel Electric Annunciator.
Operator 15 August 5/1Citation details for Operator

1889
Mr. Edison, I was informed, had been up the two previous nights discovering ‘a bug’ in his phonograph—an expression for solving a difficulty, and implying that some imaginary insect has secreted itself inside and is causing all the trouble.
Pall Mall Gazette 11 March 1/1

If we are feeling fanciful we might find ourselves in the land of the Fairies where we might encounter a mischievous Welsh Bwgan up to no good.

So when the moth was discovered it was duly noted that an actual bug had been found rather than the mythical one that had long been blamed for such malfunctions.

It is a good story so it is a shame to waste it.

And another think

An article from the New Statesman today included the passage:

If Rachel Reeves imagined her repeated insistence that Labour's
"iron-clad" commitment to sound public finances would spare her the fate of Stafford Cripps, Jim Callaghan and Denis Healey, she had another thing coming.

I stopped reading after “she had another thing coming”. What was coming? A promotion? A cup of coffee? Surely what was meant was that her rumination would require further thought – she had another think coming. The Ngram view (for what that is worth) shows the ‘thing’ form taking off from around 2000 and becoming the more usual form today.

A chart showing the increase in usage of thing over think

It is a curious phrasing. The folksy etymology is often attributed to American usage but one suspects that anyone who thinks that has another think coming.