We think that the early mined coins of Satoshi are also a prize competition and that Satoshi is waiting this coins to be moved. We also think that he will not respond after somebody moves the first coins but it will be a message to the Bitcoin community that the private keys are somehow on the blockchain. If Satoshi disagreed with that conclusion he would have moved the coins to other addresses.
Interesting hypothesis, but these could have also happened...
- He lost the keys (James Caan doesn't know how to do backups)
- He became incapacitated in some way, and family/friends didn't know he was Satoshi, or how to recover the funds
- He saw how big Bitcoin's economy had become, and chose to destroy (or put on ice) his private keys, knowing that if the early blocks move it could crash the economy