You draw the coastline, simple yet clear.
But what’s this?
A river inlet breaks up your smooth lines.
Add it to the map, but where do you stop?
On closer inspection the river continues.
Travel up-stream through the interior.
The water splits and cascades and pools.
What is your coastline?
When do you stop adding detail?
Perfection is an illusion.
Reality is fractal.
Maintain a scope, do good work, and move on.
Tex Barnes 