# Mastering the Mempool: Wander Through the Weird & Wonderful World of In-Flight Tx's – Matt Cutler

- Speakers: [Matt Cutler](https://streameth.org/speakers/matt-cutler)
- Channel: [Ethereum Denver](https://streameth.org/ethereum-denver)
- Date: 2020-10-09
- Duration: 21:41
- Topics: Matt Cutler, Blocknative, ETHDenver, Ethereum, cryptocurrency, Crypto, Blockchain, Blockchain technology, Bitcoin, Decentralized finance, DeFi, Token engineering, Hackathon, Smart Contracts, Social Impact, Decentralization, Privacy, Identity, Token Economics, Crypto Education, Blockchain Education, ETHDenver BUIDLathon, ETHDenver hackathon, Ethereum Denver, ETHDenver 2020, Ethereum hackathon, Ethereum Denver hackathon, #BeABufficorn, #imapegabufficorn, Web3, mempool, blocknative, Science & Technology
- Watch: https://streameth.org/watch/yt-j-6aBusPFj4
- YouTube: https://www.youtube.com/watch?v=j-6aBusPFj4

## Description

This talk is from ETHDenver, the world’s largest Web3 BUIDLathon and Community Gathering. ETHDenver’s content is crypto and blockchain focused. 

Subscribe to our channel to learn more + connect on Twitter: https://twitter.com/EthereumDenver. 

Speaker: Matt Cutler of Blocknative

Abstract: Before any transaction can be confirmed on a block, it must move through the Mempool – a critical and often overlooked element of the Web3 ecosystem. In this session, Matt Cutler will dive deep into the Mempool and the uncharted terrain of pre-chain data. Topics covered may include expected vs. unexpected behaviors of in-flight transactions, the latest research in mempool metrics, how out-of-band transactions like Speed Ups and Cancels break Dapp UX, anomalous-and-yet-very-real occurrences like Zombie Transactions, and more. Attendees will gain a deeper understanding of how the mempool works and why it matters to every builder.

This talk was recorded Friday, February 14, 2020.

ETHDenver 2020’s content themes included DeFi; DAOs and Token Engineering (TE); Gaming and Usability; Protocols and Interoperability; and Public Good and Social Impact. 

Industry experts also weighed in on topics like decentralization, privacy, identity, non-fungible tokens, scaling, governance, diversity, and arts and culture in blockchain technology.

The 2020 event was February 14-16 in Denver, Colorado and hosted 2000+ blockchain enthusiasts, developers and community members from 50 countries and 50 U.S. states.

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