This is gonna sound so American of me, but imagine talking to someone who doesn't know you use Fahrenheit and being told they have a nearly 100 degree fever. Now imagine the opposite, where you're told they have a fever below 90 or 80 degrees but you don't know they're using Celsius. Imagine both people thinking the other is dying. This post is brought to you by a beaver with a fever almost 100 degrees Fahrenheit.