How does this law of parallel lines influence the world today?

One Euclidean mathematical law is that parallel lines never intersect each other. How does this mathematical law influence the world today? (in general)

Thank you!

Well, we all do know that the sky and the ground never touch, and never will touch, .....

....... Not even looking out to the Horizon, if that is what you mean !!!!!!!!!!!!!!!!!!!!!!!!

NOW IF I MAY ASK, when are you going to ask poll question, or, rather, Anime Poll # 100 ??????????????????

The only thing is I can think of is that the earth and the sky never intersect but they are forever connected in our lives

Kuma-out