            pool.averageMagnitude = (pool.averageMagnitude + magnitude) / pool.totalParticipants; // compute new average magnitude
                // TODO: Strongly suspect this is never less. Prove it.
                if (pool.cumulative > pool.averageMagnitude) {
                    pool.cumulative -= pool.averageMagnitude;
                } else {
                    pool.cumulative = 0;
                }
