YOUTUBE 66SaEDzlmP4 Vitalik Buterin, Chief Scientist, describes Ethereum.
Lesson of the day for me is get the facts from the founders (so much heresay about Ethereum on the interwebs).
Striking is the importance Vitalik attaches to Merkle trees (Brad Fitzpatrick and Camlistore redux).
Merkle trees validation
Merkle trees hashing