system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman Arkhamverse] The Arkham series takes place in the US, right? So why does everyone use the metric system?

Batman measures distances in meters and even if you want to say it's because he's a scientist, even the thugs say "it's 10 below." It's not quite as cold as 10 below 0 in the Fahrenheit scale, based on when he searched for Mr. Freeze, so it's safe to assume they mean -10C.
gpt
First off the official units of measurement for the US government is metric. All our documents and design drawings for official use are done in metric and often carry imperial equivalents when the detailer is kind. The thugs commenting on it being "10 below" are not taking and reporting accurate temperatures they are speaking figuratively.