Rex Kirshner

I travel. I take photos and videos. I run. I believe great stories happen to those who can tell them.

I'm a researcher, content creator, and consultant. Building off an education in computer science and a background in corporate finance, I provide strategic consulting to growing businesses while creating educational resources about Ethereum, hosting podcasts, and building communities around decentralized technology.

I also believe that Ethereum is the world computer—a globally shared piece of technology that will make the world more open, fair, and trustworthy.

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Consulting & Services

RBK Strategies provides management and financial consulting—helping businesses with operations, finance, and blockchain strategy. Scratch Space is a technical development agency specializing in custom software solutions.

Whether you need strategic guidance to scale your business or custom software built from scratch, we bring hands-on experience to every engagement.

Visit RBK Strategies Visit Scratch Space

Publications

Blog

Essays on AI agents, Ethereum, decentralization, and the tools we use to build. Writing about what I'm learning at the frontier of technology.

Jul 5, 2026 Everyone Else Is Renting Dollars
Jun 30, 2026 The Price Is the Product
Jun 29, 2026 Decentralization Theater

View all posts →

Podcasts

Conversations about Ethereum, crypto, and the future of decentralized technology.

Signaling Theory Podcast

A podcast focused on the bleeding edge of technology, from blockchain to AI, and all things future tech.

Expansion Podcast

Expansion explored crypto's modular ecosystem & scaling solutions. Inactive.

Strange Water Podcast

Unscripted conversations about Ethereum. Acquired by Blockworks; inactive.

Inevitable Ethereum Wiki

Wiki explaining crypto and finance — technical, historical, and more. Built for any audience, no background knowledge required.

Visit Wiki →

Creative

Photos and videos let us travel back in time. They let us re-experience the best moments of life. I capture everything on my iPhone (and occasionally a GoPro or drone).