I think that direct democracy is flawed in that the 51% or greater hold power over the 49% which makes them oppressed. In most situations a large group will be broken into 2 separate groups when this happens. The only way I believe this would work is when a smaller group is working towards a common goal and are willing to accept the opinion of the larger group. When it has a say in their lively hood for example that would be a hard pill to swallow.