Group dynamics are always fascinating in the first person. When everyone is interested in all viewpoints around the table, the task at hand can wander into some original and unconventional territory.
Its also helpful when the only comments given push the conversation along, and aren't just efforts to feel like part of the gang.
Moments like this require a careful dance by all involved. You want to find the creative solution without meandering into a sidebar that isn't relevant. Staying within arm's reach of the task is the challenge.
In many ways our work lives are vast stretches of ordinary with moments of collaborative alchemy sprinkled within. Those moments are something other than work.