Building a better computational medium. Founder @observablehq. Creator #d3js. Former @nytgraphics. Pronounced BOSS-tock.

Investor at Dragonfly Capital. Formerly Metastable, @Airbnb, @earndotcom. Writer. Effective Altruist. Former poker pro. One always finds one's burden again.

Working on @reactjs. Co-author of Redux and Create React App. Building tools for humans.