Or long enough, as it's on a spheroid.

Or if you use a suitable projection. I'm pretty sure you can pick some really wild projection and make it work with another letter too.

It's actually a curved line

While true, this line is pretty narrow considering it is only showing one hemisphere.

over on the non-federated link aggregation site, posts like this would be in /r/mapporncirclejerk, not the main map sub :/