Tau Chain is a decentralized peer-to-peer network that claims Ethereum’s Turing completeness is the wrong direction as it is undecidable logic and missing an intricate part: proof of language. Tau is a general programming language that can express anything a computer can do. Hence, it is possible to implement any software with it. But it is the first programming language that has built-in P2P and blockchain: it is not only a standalone language, but can function collaboratively while remote computers are able to synchronize in a trustless way, thanks to the blockchain builtins (over a unified Tau Chain), and thanks to DHT builtins they are able to share data that's trustless.
The entire Bitcoin protocol could easily be implemented on Tau, with the same rules. The protocols defined in Tau can depend on state external to Tau, so this would allow some interoperability with Bitcoin. However, for something on the Tau network to communicate directly with the Bitcoin network, it would require something like the aforementioned bridge, to translate between the Bitcoin message formats and Tau's linked data representations.
Agoras is an application over Tau, being first and foremost a smart currency. It will allow smart contracts, but rather too-”smart” contracts like the bank hands you, it allows meaningful contracts only – contracts that you can know their consequences beforehand. That thanks to the decidability of Tau-Chain's language. Agoras will support true peer-to-peer contracts too: business that don't need a public arena to take place, can take place between two Agoras clients.
In layman's terms, Tau is something like a "facebook" or "twitter" where users can work together in groups to change how the service itself works and what it offers. It does this in a way that doesn't rely on any single company as a provider and that never implicitly puts your rights or privacy at risk.More details here:
https://cointelegraph.com/news/tau-chain-a-decentralized-app-store-with-greater-flexibility-than-ethereumhttp://www.idni.org/
Do you agree Tauchain could be the next revolution after Bitcoin & Ethereum?