Marissa (marissaposner)

New year new role 🚨 I’ve joined @ethereum as part of the Account & Chain Abstraction Team! This new chapter is deeply connected to a goal I’ve held: to positively impact 1 billion people in my lifetime. To me, Ethereum is the perfect place to make that happen.

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The concept of propaganda is terrifying. With AI, facts aren’t even relevant to the story. It’s just whatever some model spits out. No one cares about the truth anymore. And that’s the saddest thing 😢

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I want to take a vacation to one of those wellness resorts where have lots of workout classes and all the food is gluten free, dairy free, whatever free but still incredible. Has to be warm during the winter and have a beach. Send me your recs!

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I’ll record a 30-sec rant in Pig Latin if this hits 169 likes. Cultural enrichment, but chaotic.

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11-18-2025 🤯 Probably the coolest day of my career up until now. Took the stage to give a talk on Ethereum Interop Layer and Interop standards. Gave a fun demo to a full room with an envelope (maybe I’ll post here). Then, I did a fireside chat with @vitalik.eth on the Trustless Manifesto which has almost 100,000 signatures 🤯 Lastly, I did a really cool interview which I’ll post about tomorrow!

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New year new role 🚨 I’ve joined @ethereum as part of the Account & Chain Abstraction Team! This new chapter is deeply connected to a goal I’ve held: to positively impact 1 billion people in my lifetime. To me, Ethereum is the perfect place to make that happen.

• 10 replies
• 5 recasts
• 65 reactions