Blockchains are increasing in users at 70% per year. Currently, 3 out of 4 blockchains use proof of stake. The blockchain market is valued at $27 billion and affects many industries like stock exchanges, banks, gaming, and more. The document discusses how blockchain transaction speeds are increasing and different types of users in the blockchain space like exchanges, gambling, and decentralized finance. It also outlines current and future models of blockchain-based organizations that use proof of authority or proof of stake.