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by twiss 55 days ago
In Celcius, it's less common to round to the nearest 10 degrees (or say things like "in the twenties" as you might with Fahrenheit), because that makes a much larger difference than it does in Fahrenheit. So I wouldn't necessarily assume that "20 degrees" only has one significant digit unless it's explicitly stated. (I haven't checked the original paper, though.)

However, converting something like 21°C to 69.8°F is indeed silly and should just be 70°F.