Circle or line?

[Random Reader]

If some rithmatist drew a line around the world, would it be a line of forbidding, warding, or either depending on the intent of the rithmatist?

Also, why do most people think that the larger the curvature, the stronger the line, when the strongest line has curvature 0?

[Emily she/her]

I reckon it’d be either depending on intent, however as the series takes place on an archipelago that’s be rather difficult.  Also in general that’s a long line. Another (smaller) situation would be on a cone. 

As for your second query, I think the more curved the line of warding is, the stronger it is. (That’s right, as the top and bottom of an oval is stronger). The strongest line of forbiddance has no curve. 

[Selleshar she/her]

I wonder if it would automatically take on both the properties of a Line of Forbiddance and Warding... That would be one awesome Circle of Forbiddance... or whatever it would be called.

[wiritospren he/him]

one thing to remember is that the intention of the rithmathist so, if he was intending to do a line of forbidding that would happen, the same with the line of warding.