Bitcoin quickly made its way from a whitepaper to a production network, which is pretty amazing when you think about it. But its scripting/ programming language was initially, intentionally, limited for a few reasons, which meant that building new apps on bitcoin wasn't always easy. Enter ethereum in 2014 -- a public blockchain platform that moved away from the "Swiss-army knife" approach to a more general protocol approach. This would in turn allow endless (and entirely new) use cases to be built on top of the blockchain, whether smart contracts or "app coins" that allow decentralized crowdfunding and decentralized business models. The results, at first glance, may seem just like a new way of financing a company. But it actually goes much deeper than that: They're really software protocols that are almost replacing centralized companies or what those companies would do. The possibilities are endless... In this episode of the a16z Podcast, Ethereum inventor and co-creator Vitalik Buterin joins Fred Ehrsam, co-founder of Coinbase (an a16z portfolio company) in conversation with Chris Dixon. The conversation covers everything from the politics of open source (and value of network effects even when those networks split) to the challenges of mainstreaming and scaling tech. And what happens next?