Scene Size + Dynamics Difference?

[joescarr]

Shots go through matchmove dept. so the scene size is sometimes really large, sometimes really small (e.g. sometimes everything within 10,000 units of origin, sometimes 100 units).

I remember hearing from Rif and others that the dynamics could change based on the size of the fume grid in world units.

Is this still true?

I read this but am still not clear if the size of the fume grid in world units affects dynamics behavior:
viewtopic.php?f=8&t=419&p=3179&hilit=world#p3179

thanks,
Joe