We know that Satoshi's vision is one of Bitcoin as Money; nothing else.
From the "Bitcoin p2p e-cash paper":
Smart contract, smart property, autonomous agents, distributed markets will be a staple of the blockchain technology whether you like it or not
and sidechains are the ideal and arguably most natural way to implement these.The bold part is the only false part of that statement.
This is a classic example of the geeks trying to do too much at one time.
"The geeks fail to understand that which Satoshi hath created"-cypherdoc Had to tweak it a bit...
Argument: missing.
Show me a better way to implement fully decentralized smart platforms while also preserving the miners' potentially essential transactional revenues.
I know this is still theory at the moment but if the technology in the white paper can be safely implemented than I don't see a better technology on the market, at least presently.