I guess I was waiting for a punchline related to the "boundaries" part.<p>yes, this kind of error is multiplicative and thus has exponential effect, even though our intuition leans on additive effects. but causality propagates at c, so parts of the box have ~3ns to remain blissfully unaffected.<p>there's also something to be said for the stiffness (my term) of the system, since even the "chaotic" jointed bars example has relatively few regions of sensitivity in its operating space.