Before bitcoin this wasn't possible without trust in a third party, as far as I'm aware.
No paper needed.
Anyway, we're both speculating here. Like I said, if "science" is going to be brought to the table, I'd like to see the science backing your claims. For example, do you have research showing that no trust is required to make bitcoin work? Can the system survive without us trusting the developers, chip manufacturers and miners?
Consider the scenario where you go to a grocery store, your transaction points to your face because of surveillance in the store. Buying something online, your transaction points to your physical address. You'd still have to trust the people you trade with, otherwise you lose anonymity, and your transactions and amounts can be traced. Now they know how much you earn, how much you spend, where you spend, when you spend, etc. It's very hard as an average consumer relying on Bitcoin to avoid being traced without trusting another third-party, e.g. an exchange or similar service that allows you to "cut connecting strings".
The most populated country in the world had no issue making all cryptocurrencies illegal. If we can't find something useful and non-criminal to do with Bitcoin, I wouldn't exclude the possibility of at least mining being made illegal. Why should we spend so much of our planet's resources for proof-of-work if it's only to fuel crime?