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Marissa

@marissaposner

609 Following
3929 Followers


Marissa pfp
Marissa
@marissaposner
New year new role ๐Ÿšจ Iโ€™ve joined @ethereum as part of the Account & Chain Abstraction Team! This new chapter is deeply connected to a goal Iโ€™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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Marissa
@marissaposner
1-22-2025 ๐ŸŽค I went deeper on why I made the switch to working at the @ethereum foundation, how Moo Deng found me the job, and how I got through failure with my homie @sheldon ๐Ÿซถ๐Ÿผ https://x.com/_katherholt/status/1882095842024456590
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Marissa pfp
Marissa
@marissaposner
My latest update in podcast form ๐Ÿ‘‡๐Ÿป Collect RG 8 | marissa posner from reply girls on Pods!
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Marissa
@marissaposner
post a picture of you from a different era
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Marissa pfp
Marissa
@marissaposner
1-21-2025 โฐ There is so much to do before Pectra and time feels like it is racing by. I started my new job at EF and immediately the training wheels are off and I was given responsibility. It is so cool to be able to impact so many people through our work and Iโ€™m loving it so far.
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Marissa
@marissaposner
1-20-2025 ๐Ÿ‡บ๐Ÿ‡ธ As someone from DC, Iโ€™ve always felt a part of Inauguration Day and would sometimes go down to the national mall. However you feel about Trump, this is an exciting (albeit a little scary?) time for crypto. Buckle up because the next 4 years are going to be crazy ๐Ÿš€
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Marissa
@marissaposner
my boyfriend made me dinner tonight which consisted of a slab of hamburger meat and rice with soy sauce ๐Ÿซ  thatโ€™s what I call boy dinner ๐Ÿ‘ฆ๐Ÿผ
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Marissa
@marissaposner
Is this just a power nap then? https://x.com/solana/status/1880534255438295191?s=46
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Marissa pfp
Marissa
@marissaposner
the entire market getting rugged by the prez and his super hot wife
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Marissa
@marissaposner
are we buying $Melania or is it a scam?
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Marissa pfp
Marissa
@marissaposner
1-19-2025 ๐Ÿ’› Today I am happy because 3 daughters were returned home to their moms after 471 days. It is truly a special moment in a country that values life over everything and will pay a steep price to save the lives of our people. May the other 94 return home ๐Ÿ 
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Marissa
@marissaposner
1-18-2025 ๐Ÿ’ฐ The fiat financial system is broken. I literally cannot transfer money over the weekend. Crypto must solve this.
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Marissa pfp
Marissa
@marissaposner
1-17-2025 ๐Ÿก Officially signed my lease on an apartment in Tel Aviv ๐ŸŽ‰ I found such a nice building and it has a pool which is pretty clutch when summer is 9 months a year ๐Ÿ‘™ To new beginnings ๐Ÿฅ‚
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Marissa
@marissaposner
1-16-2025 ๐Ÿ’ญ I went in to our office today which I do once a week or so to be able to talk to our researchers in person. I had a bunch of meetings and Iโ€™m calling it a week! The weekend starts now ๐Ÿฅณ
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Marissa
@marissaposner
1-15-2025 โ›“๏ธ I spent a large chunk of my day thinking about technically how to abstract away chains from users at the protocol level. A large part of my role will be working on building and rolling out chain abstraction on Ethereum and today I got to speak to a lot of the key cross-functional players.
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Marissa
@marissaposner
1-14-2025 ๐Ÿ”ฅ It's cool to work on a product where you are deeply committed to the vision. As a previous founder, it was hard for me to conceptualize working for a company. However, working for Ethereum to build a more sustainable, decentralized, and user friendly network and experience is something I am truly passionate about and lights a fire within me.
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Marissa
@marissaposner
1-13-2025 โ›“๏ธ This is niche but TIL: I spent today learning a lot about nonces, especially 2d nonces. One of the problems with cross-chain TX is that single sequence numbers across networks make failure a nightmare. If 1 chain breaks, you have to re-sign everything. With a 2d nonce you have two dimensions of identification for transactions, rather than a single linear sequence number.
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Marissa
@marissaposner
1-12-2025 ๐Ÿ’ป ๐Ÿ‘ฉโ€๐Ÿ’ป It is 11:24 PM and I'm still grinding on meetings ๐Ÿ”ฅ I finally feel like I can see the landscape in front of me clearly. Also I went boxing today for the first time in a while which was fun!
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Marissa
@marissaposner
1-11-2025 โ›“๏ธ Today I looked in to cross-chain communication protocols. I deeply believe the future will be chain-less (the user wonโ€™t know what chain they are transacting on) and Iโ€™m interested in building the future to get there.
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Marissa pfp
Marissa
@marissaposner
1-10-2025 ๐Ÿƒ๐Ÿผโ€โ™€๏ธ Today was a weekend day for me but also the only half day for errands in the whole week. I went to the grocery store, saw a couple apartments, went on a run, and hosted Shabbat dinner. Iโ€™m grateful for everyday views like this one ๐Ÿ‘‡๐Ÿป
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