What we talk about when we talk about llamas

In a brief phone call with Mrs Heathen, we discussed how many llamas there are named "Dolly."

Mrs Heathen suggested that, while it's true that expressing it as a percentage of the total llama population does neatly sidestep the need to know exactly how many llamas exist, llama population distribution also influences name statistics. If llamas are mostly in large groups, then there will be more names used less frequently; a llama farmer is unlikely to name two of his own llamas the same thing. On the other hand, if llamas are mostly in smaller groups, each such group could have its own "Dolly Llama," and the overall percentage of Dollys is likely to be higher.

None of this, however, properly accounts for any large-scale industrial llama husbandry, where we presume the llamas aren't named at all, though if we stipulate that we're discussing only the universe of named llamas, we're back on solid ground.