Marissa Posner

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.

I’m giving a lightning talk at @EFDevcon at 1:25 pm today on the lightning stage (floor 2) about FOCIL! Come say hi 💫

The funniest thing is being in meetings and people not remembering something because their agent did it for them.

Is 2026 the year agents start attending meetings with us?

ERC-4337 is finally final🪩

1+ Billion UserOps
59+ Million Accounts
$12+ Million in Paymaster Volume

The next billion users shouldn’t need to know what a wallet is 🥂

Being a girl at an AI dev meetup is so funny because you’ll ask someone what they’re building and they’ll respond with:

"Do you know what an IDE is?"

Like no, I wandered in here looking for Pilates...