[polar]

Consider what 1 times faster or 100% faster would mean.

[amelius]

Language doesn't follow logic sometimes.

[zimpenfish]

https://languagelog.ldc.upenn.edu/nll/?p=463

>> That last reaction incorporates one criticism of Times-er, namely that it is "illogical" or "irrational": X times more than Y MUST MEAN 'Y plus X-times-Y (that is, 'X+1 times Y'), not 'X times as many/great as Y' (that is, 'X times Y'). (In the most common variant of this reaction, X times more than Y is disparaged because it is said to be ambiguous, with both the 'X times Y' and 'X+1 times Y' interpretations.)

>> The appeal here is to the idea that ordinary-language expressions are simply realizations of logical (or arithmetical) formulas. This is just backwards. The formulas are there to represent the meanings of expressions; they are not the prior reality, merely cloaked in (those devilishly vague) words of actual languages.

[hervature]

Not disagreeing with this but I would argue that logical inconsistency here is that nothing is faster and so using the word is what breaks the math.

For example you also wouldn’t say -0.5 times faster, it just doesn’t make sense.

[bengillies]

1 times faster means "the same speed as". 100% faster means "twice as fast". Though of course nobody would say 1 times faster in reality.

[wongarsu]

So what do "0.5 times faster" and "50% faster mean"? Are both identical to "half as fast"?