user avatar
Seth Rosenberg
@SethGRosenberg
Invest in seed & A fintech, AI Applications & consumer software at Greylock
New York, USA
Joined March 2009
1,371
Following
15.2K
Followers
Posts
  • Pinned
    user avatar
    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
    316K
  • user avatar
    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
    53M
  • user avatar
    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
    2.3M
  • user avatar
    Seth Rosenberg
    @SethGRosenberg
    May 14, 2021
    A dating site, but powered by TurboTax that matches capital gains with unused tax loss carryforwards
  • user avatar
    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
    429K
  • user avatar
    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?"
    519K
  • user avatar
    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
    777K
  • user avatar
    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
    user avatar
    Julio Rosas
    @Julio_Rosas11
    Oct 10, 2023
    The BLM chapter in Chicago just posted this in support of Hamas.
    709K
  • user avatar
    Seth Rosenberg
    @SethGRosenberg
    Nov 15, 2025
    All married men in NYC should frame this on their wall and buy their wives flowers
    user avatar
    Murray Hill Guy
    @MurrayHillGuy1
    Nov 14, 2025
    Dating in NYC gets better and better!
    225K
  • user avatar
    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
  • user avatar
    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
  • user avatar
    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.
  • user avatar
    Seth Rosenberg
    @SethGRosenberg
    Nov 16, 2025
    May I fund you?
    user avatar
    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.
    210K
  • user avatar
    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
    224K