Blockchain scaling and interoperability are the last major barriers standing in the way of fulfilling Web3's promise and driving widespread adoption across a full range of use cases. This speech summarizes the enormous recent progress towards this goal and gives attendees a thorough understanding of the technological developments that will underpin data availability, aggregation, and shared security. In particular, it will show how a modular approach is the key to unlocking the potential of blockchain, Web3, and decentralization.