> actually believe that "net neutrality" is possible?
I don't think very many of the net-neutrality zealots have much technical understanding of internetworking or how ISP business models work.
Anything other than a dedicated, business class circuit has a lot of shaping and speculation baked in. This is why "residential" bandwidth is so much cheaper than dedicated.
One commenter last time this came up mentioned that the best practice for residential bandwidth providers is to have 50% headroom. As QoS algorithms get better, and traffic patterns are better understood, the amount of headroom ISPs need to buy will decrease, or it will get cheaper (as upstream providers arbitrage into a peak / off-peak (expected vs unexpected) model.
The thing we need to preserve about ISP incentives is that there should always be an incentive to improve network quality.
However for networks, quality is in the eye of the beholder. If your customers want to download 4K movies, maybe 1000ms of latency is not a big deal.
But if they want to do remote screen sharing or gaming (where even small latency is noticeable) then 1000ms latency would cause the ISP to go out of business.
The technical aspect of this that many people miss is that the same piece of cable can support very different traffic patterns (often but not always) AT THE EXPENSE OF other ones. Net neutrality seemingly advocates having lawyers and politicians come up with the "correct" shaping for all traffic, with no knowledge of what an ISP's customers want to use the circuit for, and no knowledge of what protocols might become popular next year.
Net Neutrality advocates want politicians and lawyers to effectively force ISPs to support a QoS that is closer to some unspecified ideal which those pols and lawyers have no idea about. They are simply being pressured/hired to do something they are clueless about, which helps some businesses and hurts others.
Google wants net neutrality because all service providers prefer that others bear the cost of delivering their content to end users. All content providers would generally agree.
But last mile providers would disagree, because they are faced with spikes in demand and growing/shrinking user-bases and are fighting not just against the price of bandwidth but the technological limits imposed by cable modems, LTE, etc. They would rather not have added constraints placed upon them (which will add costs).
While someday it may be necessary to prevent predatory QoS schemes from being imposed, there is not an adequate level of sophistication in regulators to trust them to create wise regulation in this area.