On Fri, Mar 9, 2012 at 10:33 PM, Markus Schlager <m.slg@gmx.de> wrote:

On Wed, 29 Feb 2012, sholom.eisenstat wrote:

Iąm not sure if I want siblings or copies......

With siblings you can use 'tell all'-tiles, for example, with duplicates you cannot.

Markus

'Tell all siblings' is in my experience much prefered if I am simulating lots of similar objects moving around eg. bouncing atoms.

My aging computer will feel unreponsive if I try to make a few hundred copies of a moving atom when each has a ticking script.

Karl