This answers the question “how does Cardano plan to pay for its future development and growth?”.Cardano believes that ICO and patronage are not sustainable to support their whole project up to its end. The ICO money can run out after a couple of years. With patronage, if a big company gives a huge amount of grant, it may redirect the way how the company should go forward.
Cardano intends to solve the said problems through creating their own “Treasury”. The Treasury will receive a small amount of percentage of every transaction that happens in the network. This wallet is special as it's not controlled by anyone. It is similar to a smart contract that releases a part of the funds to the developers who wish to improve the network.