What is DAG currency?
Excuse me, could you please elaborate on what DAG currency stands for and how it differs from traditional cryptocurrencies? I'm particularly interested in understanding its unique features and how it aims to improve upon the existing blockchain systems. Is DAG a decentralized, autonomous, and global form of digital currency, and if so, what makes it stand out in the market? I'm curious to know if it addresses any of the scalability or transaction speed issues that other cryptocurrencies often face.