2. you seem to be assuming that the value of an individual bitcoin will reach $1 million. (that is probably what would be necessary for satoshi to be a 'trillionaire'.) why would anyone without bitcoins throw so much money into bitcoins, however? they might be useful, and they might be enough to attract both speculation and real use, but a century before your fanciful claims would materialise, those with present wealth would find it far easier to set up an alternative cryptocurrency.

2a. bitcoin would not actually be a robust way to store the amount of wealth that would be necessary for your story to materialise. it could still probably be disrupted by $5 million's worth of asic chips. it presently stores, also, nowhere near as much as the widely reported 'market capitalisation' figure.