“Bitcoin isn’t money. The blockchain isn’t a system of currency. It is a platform of trust. It’s not a company. It’s not a product. It’s not a service you sign up for. It’s not a currency. Currency is just the first application. It is the concept of decentralization applied to the human communication of value.”
-Andreas Antonopolous, in the YouTube video ‘Introduction to Bitcoin: what is bitcoin and why does it matter?’, in 2017.
(read about Andreas Antonopolous on Wikipedia)