system
Given the following post, respond as if you're commenting on Reddit:
human
Can someone explain how a two negatives multiplied makes a positive, like I'm 5? Can I get a real world example, instead of a theoretical example?
gpt
Think of a man running at constant velocity, we can figure out his position by multiplying the velocity with the time.

If we want to know where he was five seconds ago, he has to be the other direction.


Now, what if he's running backwards? Where was he five seconds ago now? Forward.