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.

Consulting

I provide strategic consulting services to growing businesses through RBK Strategies. With expertise spanning operations, finance, technology, and blockchain, I help organizations build the foundations they need to scale efficiently.

Whether you're refining your operational processes, implementing financial systems, or navigating the blockchain landscape, I bring hands-on experience and strategic guidance to help you achieve your goals.

I also build custom software solutions. All programming projects are developed under RBK Strategies and showcased at scratchspace.dev.

Blockchain

Inevitable Ethereum Wiki

Educational Resource

Strange Water Podcast

Podcast

Expansion Podcast

Podcast

Signaling Theory Podcast

Podcast

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).

Videos

Photography

Running Journey

In November 2016, as I was packing up to head home from work, I downloaded Couch to 5K and resolved to get started that night. Six months later I'd lost 100 pounds and finished a half marathon. Six months after that, I ran the New York Marathon in 3:35.

Since that first run in 2016, I've logged thousands of miles across 42+ countries. These days I make a point of running long distances wherever I am. I've experienced everywhere in a completely new way.

Each mile tells a story.

Running Stats

As of September 30, 2025

17,377

Total Miles

2,728

Total Runs

43

Countries

6.37

Avg Miles/Run

Home vs Travel

Home 14,013 miles
Travel 3,364 miles

Outdoor vs Treadmill

Outdoor 14,471 miles
Treadmill 2,906 miles