No, it's not. A 1Gbps comcast connection would then need roughly a 5-10Mbps bandwidth cap if you wanted to ensure everybody could hammer the connection at the s

No, it's not. A 1Gbps comcast connection would then need roughly a 5-10Mbps bandwidth cap if you wanted to ensure everybody could hammer the connection at the same time. A total data cap allows most people to use the connection at full 1Gbps speed whenever they want (because most people are only going to be hammering it on average no more than the data cap) ...while those who know they'll hammer it more than average have a specific idea of how much they can get away with.