3 ms·

It doesn't make sense. Consider the phrase "once as cheap". Multiply by two. That's twice as cheap. Meaningless.

• Dylan16807 5y ago
  Do you think "twice as expensive" is meaningless? Because by that same logic, if I start with "once as expensive" that's not a number and multiplying by two gives me a meaningless concept.
  • Blahah 5y ago
    Once as expensive is a number, it's 1 x the cost. Twice as expensive is 2x the cost. Once as cheap might arguably be 1x the cost, but twice as cheap is undefined.
    • Dylan16807 5y ago
      > Once as expensive is a number, it's 1 x the cost. Nobody says that. If someone said "once as expensive" I'd interpret "once" as talking about time. "Once" can be a counter but not a multiple.
      • Blahah 5y ago
        It seems like we're taking at cross purposes. I'm not trying to convince you that anyone says "once as X". I'm just saying "twice as cheap" is nonsensical. Because it's a multiple of something undefined.