system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Everyone in the world raises their arms/fists to represent success and victory. Why is that?

Every culture (to my knowledge), every country, and every civilization that all developed independently of eachother, and yet everyone raises their fists or arms up in the air to proclaim 'yes!' or 'victory!'.

Why is that?
gpt
It is just a human reaction. Recently, saw a video on TEd talks about body language. It said there was a study done and when someone who was blind and has always been blind won a challenge they raised thier hands up in the air, in victory. Even people who have never seen that done, react that way.