Epicenter - Learn about Crypto, Blockchain, Ethereum, Bitcoin and Distributed Technologies DevConnect 2025: Inside The Biggest Ethereum Event in History
Nov 27, 2025
Nathan Sexer, lead of the DevConnect and Events team at the Ethereum Foundation, shares insights from the monumental DevConnect 2025 in Argentina with 20,000 attendees. He discusses the innovative World's Fair format that allowed participants to interact with tangible Ethereum applications. Argentina's vibrant crypto culture, shaped by hyperinflation, was a perfect choice for hosting. The internet blackout became an unexpected catalyst for real connections, and plans are underway for DevCon in Mumbai, focusing on India's burgeoning developer community.
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Making Ethereum Tangible With A World's Fair
- DevConnect 2025 aimed to make Ethereum tangible by creating a "World's Fair" with districts showcasing real apps.
- Nathan Sexer designed the event to let attendees "touch and feel" Ethereum in daily life through live demonstrations.
Massive Multi-Event Coordination
- DevConnect coordinated 40 concurrent events inside a central venue plus a massive "Ethereum World Fair" with ~100 applications.
- The Ethereum Foundation handled production, coworking spaces, outdoor areas and many pavilion features for nearly 20,000 attendees.
Showcase Live Apps, Not Just Announcements
- Showcase working applications when the ecosystem can support real user experiences instead of just announcements.
- Use real-world adoption (payments, wallets) as the metric to choose event format and location.