This is a great point. To build an application on the current web, you're usually using a third party's data (e.g. Twitter) and you're relying on them to make s

This is a great point. To build an application on the current web, you're usually using a third party's data (e.g. Twitter) and you're relying on them to make sure its correct, available, and perhaps even for authorisation. With blockchain, you will get all sorts of verified, publicly available data and you don't need permission to use it. You know its correct and can build any application you want on top of it. You're right that we need mass adoption to reach this stage of useful global data.