> Batteries have already gotten six times cheaper within the last decade, Pedant here:, but you can't get "six times cheaper." You can get one-sixth as expensi

> Batteries have already gotten six times cheaper within the last decade, Pedant here:, but you can't get "six times cheaper." You can get one-sixth as expensive, but "six times cheaper" implies some sort of relative comparison being made about rates, not absolute values. The same issue is apparent in the HN title ("costs fell six-fold."