Vitalik Buterin delivers a special presentation for the first time in London at the Ethereum meetup on October 3rd 2014.

Part 2 of this video includes a Q&A and can be found at:    • Q&A: Cryptoeconomic Protocols In the ...  

Slides can be found at http://www.slideshare.net/ethereum/vi...

For more meetups: http://www.meetup.com/ethereum
To learn more about ethereum: https://forum.ethereum.org