# Internet r(E)volution ### Classic Internet  Everything is structured as client-server model  - The servers run as applications inside huge datacenters using a lot of energy - Most of the processes in those servers are being repeated = highly inefficient - We exist 100x times, very inefficient - This leads to a lot of centralization -> insecure, as well as abuse of our data - This has also been called Web 1.0 and Web 2.0 ### Blockchain Based Web 3.0 Vision Blockchain decentralized the server, but in principle it remains a client - server model  - It is definitely a step in the right direction but the paradigm is the same - We as users still exist in different systems, and have to deal with different applications (protocols) - These blockchains can be integrated, and through Web 2.0 concepts the web application can interact with multiple blockchains at the same time - This has also been called Web 3.0  The browser has now become our operating system running on javascript. All applications run in our browser and interact with multiple blockchains. ### Evolution To Peer2Peer Web 4 In the Web 4.0 vision, the user has been put in the center.  - you in the center of your digital life (hero) - blockchain only needed for functions like money, identity, smart contracts, ... - internet 10x more efficient - data can never get lost - data sovereignity (you own your data) - an internet created by all for all = **be the internet**