...In a Rich Man’s World
	– so above scheme gives proportional fairness... – can use M3I model for pay per ECN unmodified – notice that the overall traffic adaption rate is slower – But its slower for n unicasts anyhow, so? – includes a two-level model (content and network costs) but no coupling (necessary- unless you want to bundle) - just rx counting, which ISPs wanted anyhow, and CDNs have to have