Composable: Exploring Crypto’s Building Blocks (an Espresso Pod)

Composable: Exploring Crypto’s Building Blocks (an Espresso Pod)

Exploring cross-chain composability in a multi-chain world. Composable is a bi-weekly podcast hosted by Alysia and Ellie. Brought to you by Espresso Pods.

Episodes

June 19, 2025 73 mins

In this episode, hosts Alysia and Ellie tackle Ethereum FUD (fear, uncertainty, and doubt) head-on by rolling a special "Ethereum FUD" die—a special piece of swag that Espresso Systems produced for ETHDenver 2025—and discussing common criticisms of Ethereum. 

They cover everything from fee structures and L2 scaling solutions to fragmentation concerns and Ethereum's overall direction, diving into whether the FUD is val...

Mark as Played

In this episode, Ellie and Alysia dive deep into intent-based bridges, specifically exploring Across Protocol and their proposed Across Prime upgrade. They examine how intent bridges work, their advantages over traditional bridges, and the capital efficiency improvements that Across Prime aims to deliver for solvers (i.e., the liquidity providers that fulfill user intents).


Key Topics Covered

  • What are intents and intent brid...
Mark as Played
May 1, 2025 56 mins

In this episode of Composable, hosts Alysia and Ellie speak with Orest from t1 about proof aggregation, TEEs (Trusted Execution Environments), L2 security, and how these concepts relate to finality. The conversation explores Vitalik Buterin's recent post proposing a "two out of three" proof system combining TEE proofs, ZK proofs, and Optimistic proofs to enhance blockchain security while improving finality times. Ore...

Mark as Played
April 17, 2025 44 mins

In this episode of Composable, Alysia and Ellie explore the security of crosschain messages. They examine notable bridge attacks, analyze what makes crosschain messages vulnerable, and discuss various security approaches, including multisigs and Trusted Execution Environments (TEEs). The episode breaks down the technical aspects of securing crosschain messages while considering the trade-offs between speed and usability.

Key Top...
  • Mark as Played

    In this episode of Composable, hosts Alysia and Ellie speak with Eda Akturk, a developer advocate at Hyperlane, about intents in general and the recently released Open Intents Framework, specifically. They explore what intents are, how they're changing user experiences in web3, and dive into the collaborative effort behind the Open Intents Framework, which aims to make it easier for developers to build intent-based application...

    Mark as Played
    March 23, 2025 27 mins

    In this episode, hosts Alysia and Ellie explore the concept of wrapped tokens in the Ethereum ecosystem, discussing their purpose, benefits, and limitations.

    Key Topics:

    • Canonical vs. wrapped tokens
    • Use cases for wrapped tokens
    • Security implications of token issuance
    • Limitations and challenges of wrapped tokens
    • Bridging solutions and speed/security tradeoffs
    • Future of wrapped tokens

    Composable is a bi-weekly podcast exploring cryp...

    Mark as Played

    In this episode of Composable, hosts Ellie and Alysia dive deep into the topic of synchronous composability with guest Cecilia, an engineer at Gwyneth Taiko. They explore the technical challenges of reaching synchronous composability, potential implementations to enable it, and the future value it could drive. They also examine why many prominent figures in the crypto space consider synchronous composability overrated...


    Key To...

    Mark as Played
    February 25, 2025 60 mins

    In this sixth episode of Composable, Alysia and Ellie explore the question of what it means to "Build Something Real" and the tension that exists today between blockchain's potential versus its current hype-filled reality.


    Key Topics Covered:

    • The controversial role of memecoins in crypto and whether they provide genuine value
    • What it actually means to "Build Something Real" in the blockchain space
    • How ...
    Mark as Played
    February 6, 2025 51 mins

    Is bridging assets between chains real or just smoke and mirrors? Join Ellie Davidson and Alysia Tech as they dive deep into the fascinating mechanics and philosophical questions around cross-chain bridging.

    Key topics covered:

    • The difference between "real" asset movement vs locking and minting wrapped tokens
    • Why bridging L1 to L2 is faster than L2 to L1, and the role of finality
    • Native vs wrapped assets: exploring USDT0 ...
    Mark as Played

    Join hosts Ellie and Alysia as they discuss the realities of cross-chain bridges, including looking at which are the most used, crypto UX, security tradeoffs, etc. — and then put several bridges to the test in a live demo, bridging assets across Ethereum, Arbitrum, and Base.

    Key topics covered include:

    • Speed and fee comparisons across different bridge types
    • Bridge architectures: canonical, intent-based, and externally verified
    • Secu...
    Mark as Played

    In this episode of Composable, hosts Alicia and Ellie sit down with Maria Shen from Electric Capital to discuss their latest Developer Report that's making waves in the crypto space. They dive deep into how the war for developers is shaping up — with particularly noteworthy data on Ethereum losing out to Solana for most new devs, and a migration of Ethereum devs to working L2s.

    Key topics covered:

    • The surprising ri...
    Mark as Played

    In this episode of Composable, hosts Alicia and Ellie dive deep into the world of blockchain confirmations, exploring the nuances between preconfirmations, confirmations (like those provided by the Espresso Network), and L1 finality. They unpack how these different levels of transaction verification impact user experience and interoperability.

    Key topics covered:

    • The emergence and evolution of preconfirmations, particularly in re...
    Mark as Played

    In the debut episode of Composable, hosts Alysia and Ellie begin with a foundational discussion about composability and its role in shaping Ethereum’s future. In it, they break down:

    • The difference between synchronous (transactions completed within one block) and asynchronous composability (transactions completed across multiple blocks).
    • UX pain points caused by fragmentation, like "dust" left on chains after cross-chai...
    Mark as Played
    December 12, 2024 2 mins

    Introducing Composable, a biweekly podcast exploring cross-chain composability in a multi-chain world. Hosted by Alysia and Ellie, and brought to you by Espresso Pods.

    Composable is a bi-weekly podcast exploring crypto's building blocks. Hosted by Alysia and Ellie, and brought to you by Espresso.

    Find us on X:
    Composable — @composablepod
    Alysia — @alysiatech
    Ellie — @ellierdavidson

    Mark as Played

    Popular Podcasts

      Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Special Summer Offer: Exclusively on Apple Podcasts, try our Dateline Premium subscription completely free for one month! With Dateline Premium, you get every episode ad-free plus exclusive bonus content.

      The Breakfast Club

      The World's Most Dangerous Morning Show, The Breakfast Club, With DJ Envy, Jess Hilarious, And Charlamagne Tha God!

      Crime Junkie

      Does hearing about a true crime case always leave you scouring the internet for the truth behind the story? Dive into your next mystery with Crime Junkie. Every Monday, join your host Ashley Flowers as she unravels all the details of infamous and underreported true crime cases with her best friend Brit Prawat. From cold cases to missing persons and heroes in our community who seek justice, Crime Junkie is your destination for theories and stories you won’t hear anywhere else. Whether you're a seasoned true crime enthusiast or new to the genre, you'll find yourself on the edge of your seat awaiting a new episode every Monday. If you can never get enough true crime... Congratulations, you’ve found your people. Follow to join a community of Crime Junkies! Crime Junkie is presented by audiochuck Media Company.

      The Clay Travis and Buck Sexton Show

      The Clay Travis and Buck Sexton Show. Clay Travis and Buck Sexton tackle the biggest stories in news, politics and current events with intelligence and humor. From the border crisis, to the madness of cancel culture and far-left missteps, Clay and Buck guide listeners through the latest headlines and hot topics with fun and entertaining conversations and opinions.

      The Megyn Kelly Show

      The Megyn Kelly Show is your home for open, honest and provocative conversations with the most interesting and important political, legal and cultural figures today. No BS. No agenda. And no fear.

    Advertise With Us
    Music, radio and podcasts, all free. Listen online or download the iHeart App.

    Connect

    © 2025 iHeartMedia, Inc.