with Devon Zuegel (@devonzuegel), Denis Nazarov (@iiterature), and Jesse Walden (@jessewldn) The open source movement enabled so much in computing, including the collaborative building of libraries -- that is, building blocks of code that developers could combine together to build applications. But as these applications grew to massive scale, those libraries ended up being somewhat asymmetrical for "nights-and-weekend" developers (compared to say, the disproportionate resources of a large company with billions of users and big data). Blockchains, however -- enabled by cryptotokens that align incentives among stakeholders -- shift open source development from libraries, to the creation of shared, open, permissionless services. Instead of being siloed and repetitively produced as if from the industrial factory era, any smart contract developed on Ethereum becomes a shared service that can interact with any other service... incentivizing developers to improve on existing services, build on top of them, and enable combinatorial innovation at greater scale than ever before. But if decentralized networks are to win the third era of the internet, how will we resolve challenges such as single-purpose services (another form of consolidation), community conflicts, and other issues? In this video, freelance software engineer (and blockchain app developer) and writer (and urban watcher) Devon Zuegel guest-interviews a16z crypto partners Denis Nazarov and Jesse Walden, the co-founders of Mediachain Labs (which was acquired by Spotify in 2017). They draw on their past experiences leading open source development of a decentralized media attribution protocol for connecting creators to their audience, and what the implications of "services vs. libraries" could be for creatives now. And what about identity, stablecoins and crypto finance, and more? Finally, they extend their previous analogy of cities and network effects and how it fits the idea of libraries vs. services in crypto. Please note that the a16z crypto fund is a separate legal entity managed by CNK Capital Management, L.L.C. (“CNK”), a registered investor advisor with the Securities and Exchange Commission. a16z crypto is legally independent and operationally separate from the Andreessen Horowitz family of fund and AH Capital Management, L.L.C. (“AHCM”). In any case, the content provided here is for informational purposes only, and does NOT constitute an offer or solicitation to purchase any investment solution or a recommendation to buy or sell a security; nor it is to be taken as legal, business, investment, or tax advice. In fact, none of the information in this or other content on a16zcrypto.com should be relied on in any manner as advice. You should consult your own advisers as to legal, business, tax and other related matters concerning any investment. Furthermore, the content is not directed to any investor or potential investor, and may not be used or relied upon in evaluating the merits of any investment and must not be taken as a basis for any investment decision. No investment in any fund advised by CNK or AHCM may be made prior to receipt of definitive offering documentation and due diligence materials. Finally, views expressed are those of the individual a16z crypto personnel quoted therein and are not the views of CNK, AHCM, or their respective affiliates. Please see a16zcrypto.com/disclosures/ and a16zcrypto.com/disclaimers/ for further information.