Ethereum Layer 2 Rollup Debate: Optimism, Starkware, Arbitrum and zkSync

The Delphi Podcast Host and GP of Delphi Ventures Tom Shaughnessy hosts an all star crew of all of the leading Ethereum Layer 2 Rollup scaling projects for an in-depth debate. See the transcript on our site as well.

• Ed Felten, Fo-Founder of Off-chain Labs (Arbitrum)
• Eli Ben-Sasson, Co-Founder of Starkware
• Alex Gluchowski Founder of zkSync
• Liam Horne, Contributor to Optimism 
• Mark Tyneway, Systems Lead at Optimism 
• Ben Simon, Investment Analyst at Mechanism Capital

We would like to thank Cosmos for making this podcast possible through their sponsorship! Cosmos is on a mission, link one million blockchains. Name brand projects like Terra, Band, Kava, and Secret use Cosmos and the Cosmos Hub to connect to every other chain in our network. The Cosmos Hub is the port city that delivers Inter-Blockchain Communication today. Learn more at cosmos.network.

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Show Notes:

2:00) - (First Question) Eli's Intro. (2:26) - Alex's Intro. (2:43) - Mark's Intro (2:57) - Liam's Intro. (3:17) - Ed's Intro. (3:40) - Ben's Intro. (4:30) - Optimistic roll-ups. (5:42) - Key differences between Arbitrum and Optimism. (8:13) - What is Starkware doing compared to Optimism. (11:20) - Optimistic vs ZK roll ups. (20:19) - Differences between fraud proofs and validity proofs. (29:07) - What would happen if the network splits and two parties propose progress in different directions? (21:18) - Mark thoughts on fraud proofs. (28:34) - Thoughts on attacks on Ethereum. (40:02) - Optimism and Arbitrum plans to reach high scale / Signatures / Price feeds (57:55) - Optimism progressing into production on Ethereum. (01:01:00) - Thoughts on bootstrapping usage and adoption - Starkware/zkSync/Optimism. (01:11:57) - Is the roll-up ecosystem going to be sort of a winner take all? (01:20:10) - Where to find Starkware. (01:20:55) - Where to find zkSync. (01:21:57) - Where to find Optimism. (01:22:43) - Where to find Arbitrum. (01:23:25) - Where to find Ben Simon.

Resources:

• Ed Felten, Fo-Founder of Off-chain Labs (Arbitrum)
• Eli Ben-Sasson, Co-Founder of Starkware
• Alex Gluchowski Founder of zkSync
• Liam Horne, Contributor to Optimism 
• Mark Tyneway, Contributor to Optimism
• Ben Simon, Investment Analyst at Mechanism Capital
• Tom’s Twitter: https://twitter.com/Shaughnessy119
• Delphi Podcast Twitter: https://twitter.com/PodcastDelphi
• Tom’s Clubhouse: