Lightspeed Blockchains Beyond the Public Internet | Austin Federa
Jan 13, 2026
Austin Federa, co-founder of DoubleZero and former Solana Foundation member, shares insights on revolutionizing blockchain networks. He discusses the significance of a private fiber network for enhancing performance beyond the public internet. Austin highlights DoubleZero's goals for 2025, including validator incentives and onboarding. He delves into the crucial aspects of latency, jitter reduction, and the innovative multicast technology that promises efficiency and larger block sizes. The future looks bright with plans for concurrent producers and increased decentralization!
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Private Fiber Is Key To Blockchain Performance
- DoubleZero formed because blockchains need private networks to exceed public internet limits for latency and throughput.
- Austin Federa argues private fiber is essential for competing with TradFi execution, not just settlement.
Consistency Beats Average Latency
- DoubleZero shows consistent latency improvements, often 20–80% faster than the public internet on key routes.
- Reduced jitter and fixed latency matter more than averages for traders and validators during market stress.
Multicast Unlocks Massive Bandwidth Savings
- Multicast lets networks send one packet and replicate it in the network, massively cutting long-haul bandwidth use.
- Austin claims multicast can reduce bandwidth needs orders of magnitude, enabling much bigger blocks.