# Fireside chat with ZKsync I Alex Gluchowski & Kartik Talwar at Pragma Denver 2025

- Speakers: [Alex Gluchowski](https://streameth.org/speakers/alex-gluchowski), [Kartik Talwar](https://streameth.org/speakers/kartik-talwar)
- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2025-10-09
- Duration: 21:18
- Topics: Ethereum, Ethereum Foundation, Alex Gluchowski, Matter Labs, Pragma Denver, ETHGlobal, Elastic Network, zero-knowledge proofs, rollup cluster, EVM compatibility, data availability, decentralized sequencer, ZK stack, L2 scalability, application-specific chains, isolation, trustless interoperability, throughput, ERC-4337, native account abstraction
- Watch: https://streameth.org/watch/yt-EUm_Z8j-Zv0
- YouTube: https://www.youtube.com/watch?v=EUm_Z8j-Zv0

## Description

Join Alex Gluchowski, Co-Founder of Matter Labs, and Kartik Talwar at Pragma Denver 2025 for a fireside chat about the Elastic Network, the next major evolution in ZK Sync’s roadmap. 

Discover how Matter Labs envisions a “ZK rollup cluster” of application-specific and community-specific chains, all seamlessly interoperable and secured by zero-knowledge proofs. Alex shares insights on customizing data availability, decentralizing sequencers, and achieving EVM compatibility, along with how the Elastic Network supports both high throughput and isolation.

If you’re curious about why ZK is considered the endgame for Ethereum scaling—or simply want to learn how ZK Sync’s era chain fits into a future of thousands of rollups—this conversation is your crash course on building the Internet of blockchains.

00:00 Introduction & Fireside Chat Setup
01:00 Defining the Elastic Network & Rollup Clusters
02:15 Why ZK Sync Is Building Multiple Chains
03:06 Customizing Data Availability & Chain Properties
04:44 Interoperability vs. Cross-Chain Messaging
06:10 Infinite Scalability & Security Isolation with ZK
07:41 Handling Different Base Tokens & Fee Payment
09:32 Sequencing & Decentralization Roadmap
11:14 The Role of ZK Sync Era as the “Ethereum” of This Cluster
13:06 Tapping into Shared Integrations & Infrastructure
14:07 Trade-Offs & ZK Proof Costs
16:03 EVM Equivalence & Next Steps
18:30 Roadmap Highlights for 2025
20:36 Final Thoughts & Closing

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🇺🇸 *Pragma Denver*
Pragma Denver 2025 was held on February 25th at ReelWorks in Denver, Colorado and was an in-person summit for builders and leaders in the web3 ecosystem. Watch the full Pragma Denver YouTube Playlist here: https://youtube.com/playlist?list=PLXzKMXK2aHh6mvMfVn2gIK2uhRiTHjIg9&si=Xyozrbw0ZvUW_65a

ETHGlobal's Pragma series takes place in cities around the world, and is designed to be a different kind of event. Pragma is a one-stage conference with founders-only on stage, bringing together a small group of curated attendees and speakers to discuss the future of web3 and reflect on the past. 

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✅ *Follow Alex Gluchowski*
X: https://x.com/gluk64

✅ Follow *Matter Labs*
X: https://x.com/the_matter_labs

✅ *Follow ETHGlobal*
X: https://x.com/ETHGlobal​
Warpcast: https://warpcast.com/ethglobal
Website: https://ethglobal.com
YouTube: https://www.youtube.com/c/ETHGlobal 

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