
Harmonic Fires Back in Solana’s Block Building Wars | Ben Coverston
Gm! In today’s episode we are joined by Harmonic CEO Ben Coverston to discuss his background in quantitative trading and transition to crypto, the evolution of DeFi on Solana, and Harmonic’s approach to block building and transaction scheduling. We also cover market structure debates, decentralization concerns, competition among block builders, and potential protocol changes like MCP and Alpenglow.
Enjoy!
--
Follow Lightspeed: https://twitter.com/Lightspeedpodhq
Follow Harmonic: https://x.com/harmonic_gg
Follow Temporal: https://x.com/temporal_xyz
Follow Ben Coverston: https://x.com/HypoNyms
Follow Carlos: https://x.com/0xcarlosg
Follow Danny: https://x.com/defi_kay_
Join the Lightspeed Telegram: https://t.me/+QHlbNTNS4gc1ZTVh
--
Join us at DAS (Digital Asset Summit) in New York City this March! Use the link below to learn more, and use code LIGHTSPEED200 to get $200 off your ticket! See you there!
Learn more + get your ticket here: https://blockworks.co/event/digital-asset-summit-nyc-2026
--
Get top market insights and the latest in crypto news. Subscribe to Blockworks Daily Newsletter: https://blockworks.co/newsletter/
--
Timestamps:
(0:00) Introduction
(2:14) Ben's Background
(9:34) The Temporal Ecosystem
(13:14) Inside Harmonic: Solana's New Block Builder
(22:37) Block Builder Wars & Criticism from Competitors
(29:26) Solana's Future Architecture
(50:07) The Future of DeFi Market Structure
(1:00:13) Closing Comments
--
Disclaimers: Lightspeed was kickstarted by a grant from the Solana Foundation.
Nothing said on Lightspeed is a recommendation to buy or sell securities or tokens. This podcast is for informational purposes only, and any views expressed by anyone on the show are solely our opinions, not financial advice. Danny, and our guests may hold positions in the companies, funds, or projects discussed.
Harmonic Fires Back in Solana’s Block Building Wars | Ben Coverston
Subscribe & Listen
MetaDAO's Permissionless Launchpad
The Future of Digital Assets | Regulation, Value Accrual, and Token Design
More from Lightspeed

The KelpDAO Hack and DeFi’s Stress Test | Ian Unsworth
Gm! In today’s episode, we’re joined by Ian Unsworth, Co-founder of Kairos Research, to break down the KelpDAO hack and its impact on DeFi, from liquidity outflows to risk management. We also cover stablecoin yield strategies, Ethena’s backing model, Layer 2 risks like Scroll, and emerging infrastructure like DoubleZero Edge. Enjoy! -- Follow Lightspeed: https://x.com/Lightspeedpodhq Follow Kairos Research: https://x.com/Kairos_Res Follow Ian: https://x.com/Ian_Unsworth Follow Danny: https://x.com/defi_kay_ Join the Lightspeed Telegram: https://t.me/+QHlbNTNS4gc1ZTVh -- Get top market insights and the latest in crypto news. Subscribe to Blockworks Daily Newsletter: https://blockworks.co/newsletter/ -- Timestamps: (0:00) Introduction (2:56) rsETH Hack (11:40) Are DeFi Rates Worth It? (19:45) Scroll’s Gas Price Controversy (25:46) Ethena’s Backing and Yield Model (38:48) Why DoubleZero Edge Matters (45:39) Solana Value Capture Debate (58:22) Where DoubleZero Goes Next (1:00:55) Closing Comments -- Disclaimers: Lightspeed was kickstarted by a grant from the Solana Foundation. Nothing said on Lightspeed is a recommendation to buy or sell securities or tokens. This podcast is for informational purposes only, and any views expressed by anyone on the show are solely our opinions, not financial advice. Danny, and our guests may hold positions in the companies, funds, or projects discussed.

DoubleZero Edge: Democratizing the Speed Advantage | Austin Federa
Gm! In this episode, we’re joined by Austin Federa, Co-Founder of DoubleZero, to discuss the network’s growth, its shift to Edge-based data monetization, and the role of high-speed data in trading. We also cover Solana’s roadmap, validator dynamics, DeFi fairness, and evolving Foundation strategy amid shifting regulatory and institutional conditions. Enjoy! -- Follow Lightspeed: https://x.com/Lightspeedpodhq Follow DoubleZero: https://x.com/doublezero Follow Austin Federa: https://x.com/Austin_Federa Follow Danny: https://x.com/defi_kay_ Join the Lightspeed Telegram: https://t.me/+QHlbNTNS4gc1ZTVh -- Get top market insights and the latest in crypto news. Subscribe to Blockworks Daily Newsletter: https://blockworks.co/newsletter/ -- Timestamps: (0:00) Introduction (1:39) DoubleZero Growth Update (3:41) Why Edge Changes Revenue (6:48) Why APIs Are Too Slow (9:22) How Shreds Create Alpha (16:13) Can DeFi Be Fair? (20:07) Alpenglow and Constellation (28:58) What Comes Next? (31:01) Solana Foundation’s New Playbook (35:02) Where Foundations Should Compete (46:51) Edge Launch Timeline (47:46) Closing Comments -- Disclaimers: Lightspeed was kickstarted by a grant from the Solana Foundation. Nothing said on Lightspeed is a recommendation to buy or sell securities or tokens. This podcast is for informational purposes only, and any views expressed by anyone on the show are solely our opinions, not financial advice. Danny, and our guests may hold positions in the companies, funds, or projects discussed.

How Institutions Are Moving Onchain | Catherine Gu
Gm! In today’s episode, we’re joined by Catherine Gu, Head of Product, Digital Assets at Solana, to discuss her transition from Visa to Solana, the institutional adoption of blockchain, tokenization, payments infrastructure, and developer platforms. We also cover privacy and compliance challenges, onchain metrics, liquidity dynamics, and Solana’s vision for internet capital markets.Enjoy! -- Follow Lightspeed: https://x.com/Lightspeedpodhq Follow Solana: https://x.com/Solana Follow Catherine: https://x.com/catgu_ Follow Danny: https://x.com/defi_kay_ Join the Lightspeed Telegram: https://t.me/+QHlbNTNS4gc1ZTVh -- Get top market insights and the latest in crypto news. Subscribe to Blockworks Daily Newsletter: https://blockworks.co/newsletter/ -- Timestamps: (0:00) Introduction (1:31) Catherine's Crypto Journey (8:45) Why Solana Now (12:05) Solana Developer Platform (17:00) Privacy for Institutions (21:23) KYC and Attestations (27:50) Better Onchain Metrics (31:42) Solana’s Liquidity Pitch (35:35) Institutional Adoption Inflection (40:12) Internet Capital Markets (44:30) Memecoins, Brand, and Growth (49:25) Closing Comments -- Disclaimers: Lightspeed was kickstarted by a grant from the Solana Foundation. Nothing said on Lightspeed is a recommendation to buy or sell securities or tokens. This podcast is for informational purposes only, and any views expressed by anyone on the show are solely our opinions, not financial advice. Danny, and our guests may hold positions in the companies, funds, or projects discussed.