Re: Ethereum is the future of crypto, bitcoin is not.

Are there any useful smart contracts that working already?

Yeah there are quite a few already live on the Ethereum network

Check the DappsList: https://dappslist.com/dapps

It's obvious that most are still in development though, as this is still completely new technology

These are my favourites so far:

https://app.augur.net/

https://www.reddit.com/r/ethereum/comments/456abv/could_i_write_a_ponzi_scheme/

Those haven't been scaled yet and they can't be because Ethereum can't be scaled decentralized. Moreover Ethereum will blow up because it violates the fact that the speed-of-light isn't infinite.

n00bs are easily fooled by what they don't understand about the technology. "Oh I see Dapps, therefor Ethereum works". Sorry that is not correct.