
However, even though the horizon of an infinite and flat Earth might actually be in the same place, it wouldn’t appear to be.

The only difference between a finite flat Earth and an infinite flat Earth is that no matter how tall you are on an infinite flat Earth, the horizon always stays in the same place. Unless you have short arms, in which case you’ll need to shave down the lead a little.Įven if the Earth were perfectly flat and went on forever, the horizon would still be exactly level: 180° of sky and 180° of ground (instead of the paltry 179.92° of ground we have).

That’s about the width of a (mechanical) pencil lead held at arm’s length.

For someone around 5’6″ tall, if the Earth were perfectly flat the horizon would be about 0.04° higher.
