- two key properties
- more room
- parallel vs. equidistant
- circumference is exponential, not geometric, with radius
- angle of parallelism increases with distance
- circumference is exponential, not geometric, with radius
- outsider view
- infinite space drawn in a finite projection
- focus+context
- focus+context
- may seem contradictory, but follows from definition of distance
- triangles with < 180 degrees
- pentagons with 5 right angles
- Euclid's parallel postulate doesn't hold
- pentagons with 5 right angles
