Orion isn't directly overhead. In your analogy I'd be drawing a 6 on the wall, and the other person would have to bend over backwards to claim it's a 9.

I mean, I guess they could, but they'd clearly be bending over backwards to make a logical fallacy.

> Orion isn't directly overhead.

Maybe not for you :)

In my example the number need not be directly overhead either. It could be drawn in the middle of a very long room where you and the other person are at opposite ends. You're both looking at it at an angle and both still seeing different numbers, although in a very skewed perspective - I don't know how flat earthers account for perspective and projection in their skydome or whatever.

Well, flat-earthers appearently believe that Australians are all actors paid by NASA to convince everyone the earth is a globe. I'm not going to waste much time listening to them.

The Orion-is-upside-down-here thing was the first time I noticed something that drove it home to me that we live on a sphere.