Well, it is supposed to unscaleable. This is how our house of representatives works! The idea is with-in each state there are districts. Representatives from a district are supposed to represent those people within the district. An exchange trader who lives in NYC probably have very different concerns than a farmer in an small district in Nebraska. It is actually a wonderful system when it works. We have grown as a nation so our number of people per representative has grown enormously since the start (we are locked by law at 435). One concern we all have in the states is, when does an individuals voice become too diluted!
The limit law is something congress enacted. The Constitution has a much higher limit based on population. Granted I don't think the house could function with over 10K members but then again it would make gerrymandering impossible.
It's not as though it functions well now. At least with that many members it would not-function in ways that more frequently benefited areas where people actually live.
With some technological assistance, it seems like a group of 10,000 representatives would actually be robust to many of the problems with the current smaller group.
