Seth Rosenberg (@SethGRosenberg) / X

Seth Rosenberg

6,144 posts

Seth Rosenberg

@SethGRosenberg

Invest in seed & A fintech, AI Applications & consumer software at Greylock

New York, USA

Joined March 2009

@SethGRosenberg

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Seth Rosenberg
@SethGRosenberg
Sep 7, 2023
While everyone rushes to back the “picks and shovels” of AI, I want to back founders trying to find “gold” - i.e create products that change how people work and live. Here are key takeaways from my new post on building lasting value in AI-first products bit.ly/3sKmiwS
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Seth Rosenberg
@SethGRosenberg
Nov 3, 2025
My experience voting in NYC: 1. No ID required 2. Zohran on the ballot twice in the top row 3. Eric Adams, who dropped out to avoid splitting the vote, still on the ballot 4. Cuomo in the bottom right corner, 2nd row
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Seth Rosenberg
@SethGRosenberg
Nov 3, 2025
Replying to @SethGRosenberg
While you're here, VOTE I lived in SF while it was run by extremists; an incredible city can get bad quickly Check out the 2nd row, bottom right for the best chance to save NYC
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Seth Rosenberg
@SethGRosenberg
May 14, 2021
A dating site, but powered by TurboTax that matches capital gains with unused tax loss carryforwards
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Seth Rosenberg
@SethGRosenberg
Nov 4, 2025
Replying to @brandonaaragon
You're listing the rules that enable a broken system Of course, you should verify via ID that the physical person matches the registered voter. It's very easy to buy a list of registered voters. The rest is more nuanced, but results in a convoluted ballot
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Seth Rosenberg
@SethGRosenberg
Nov 4, 2025
Replying to @CHSommers
Everyone in the comments: "NYC voting has been corrupt since it was known as New Amsterdam, are you new here?"
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Seth Rosenberg
@SethGRosenberg
Nov 3, 2025
Replying to @fresco_inferno
A logical system would be you vote for a person + party, so all votes for Zohran #2 would go towards the 2nd party I asked, and of course, if you vote for Zohran #1 or Zohran #2, they're added together for the Democrats
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Seth Rosenberg
@SethGRosenberg
Oct 10, 2023
This is very sad. When George Floyd was murdered, I went out to protest. I organized fundraisers and donated personally. When anti-semitic activists co-opt a great cause, it hurts everyone A poster with a terrorist on their way to behead babies is not something to celebrate
Julio Rosas
@Julio_Rosas11
Oct 10, 2023
The BLM chapter in Chicago just posted this in support of Hamas.
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Seth Rosenberg
@SethGRosenberg
Nov 15, 2025
All married men in NYC should frame this on their wall and buy their wives flowers
Murray Hill Guy
@MurrayHillGuy1
Nov 14, 2025
Dating in NYC gets better and better!
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Seth Rosenberg
@SethGRosenberg
Feb 29, 2020
Socialism vs. capitalism from the perspective of your mom having cancer Pure capitalism she can’t afford the treatment Pure socialism the treatment doesn’t exist (it was never invented) Capitalism with a social safety net is the answer that no one seems to be offering
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Seth Rosenberg
@SethGRosenberg
Sep 30, 2021
What do excel & guys in SF have in common? They both have trouble recognizing if something is a date
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Seth Rosenberg
@SethGRosenberg
Oct 25, 2019
I saw a venture investor the other day. No podcast No twitter No conferences No self-congratulatory lists Just investing in areas they know something about. And working with a small set of companies. Like a psychopath.
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Seth Rosenberg
@SethGRosenberg
Nov 16, 2025
May I fund you?
VCs Congratulating Themselves 👏👏👏
@VCBrags
Nov 16, 2025
Young VCs today say it’s impossible to meet founders offline. Back in my day, I’d walk up to a random person building a tech company and politely ask: ‘May I deploy capital into you?’ 98% yes-rate. Manners matter. So does a fund with dry powder.
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Seth Rosenberg
@SethGRosenberg
Oct 16, 2023
The genius marketing of Hamas Gaza operates as an independent state, whose leader has a stated goal to commit genocide against its neighbor Naturally, Israel has a strict border with this neighbor - what people call a "blockade" And, Hamas has branded this blockade
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