ISPs and users pay for the decentralized networks. Decentralized networks are a cheaper way to do networking, of course it's not as fast and simple to use, but

ISPs and users pay for the decentralized networks. Decentralized networks are a cheaper way to do networking, of course it's not as fast and simple to use, but the big advantage of P2P is that the user pays for the hardware. If your software can work on user hardware (which is a lot of computers), it's a huge economic and infrastructure advantage. The point is not only to give user the control over their data, it's also to reduce the barrier of having to pay to make a service, since it can also require knowledge and maintenance to build a service. P2P removes the duality of the internet. The internet is not just a "series of tubes", it's also a large quantity of expensive server rooms and high grade hardware that must sustain large throughput. To me, p2p is the real "web". If today you remove gmail, youtube, google, facebook and twitter, the internet dies because users don't know what to do anything anymore. Granted, it's not as simple and the software is complex, but if companies can do horizontal scaling in server rooms, it should also be doable with user computers.