Story Grid, does it keep expanding?

Question

Is there a point at which the grid will expand if I keep adding stuff or does it have a finite size?

Answer 1

It's probably finite, but I've no clue where that is. It won't be finite within normal use.

Answer 2

AFAIK, the coordinates of each passage on the map are stored as doubles (double-precision IEEE-754 floating point), so you should not need to worry.  Yes, its size is actually finite, but in practice it will be effectively unlimited.