Skip to content
HomeVideosBooksBlogs
AllTop postsTopics
Podcasts
HistoryListsWatch laterLiked videosFollowing

The videos, books, blogs and podcasts Hacker News keeps recommending, all in one place.

VideosBooksBlogsPodcastsAboutPrivacySettings

Data from Hacker News, HackerTube, HackerBooks, HackerBlogs and Open Library. Credits · Not affiliated with Y Combinator.

HomeVideosBooksBlogsPodcasts
Ctrl K

    25iq

    25iq.com · Personal blog · on HN since 2010

    Tren Griffin writes lists of lessons drawn from investors and founders such as Munger, Naval Ravikant and Paul Graham.

    Visit blogRSSHN submissions
    Finance & InvestingStartupsBusiness & Strategy
    What HN says

    Commenters praise Griffin's posts as great, and link them for venture capital, mental models, business analysis and examples of premature scaling.

    Stats for nerds
    80HN people shared it
    89linked in comments
    384story points
    Jan 2025last shared
    2015people per year2025

    Top posts on HN

    1. 1
      Things I’ve Learned From Marc Andreessen
      1 person · 104 points · first shared 2014 · 42 comments on HN
    2. 2
      What might the Amazon, Berkshire and JPM health care joint venture actually do?
      3 people · 69 points · first shared 2018 · 21 comments on HN
    3. 3
      Why Investing in Airlines Belongs in the Too Hard Pile
      1 person · 30 points · first shared 2016 · 10 comments on HN
    4. 4
      12 Things I’ve Learned from Naval Ravikant about Investing and Startups
      7 people · 22 points · first shared 2016 · Discussion on HN
    5. 5
      A Dozen Things I’ve Learned from Paul Graham
      3 people · 17 points · first shared 2014 · Discussion on HN
    6. 6
      Sand Hill Road (Venture Capital and How to Get It)
      1 person · 8 points · first shared 2019 · Discussion on HN
    7. 7
      A Dozen Things I’ve Learned from Peter Thiel
      1 person · 7 points · first shared 2014 · Discussion on HN
    8. 8
      A Dozen Things I’ve Learned from Chamath Palihapitiya About Investing and Business
      3 people · 6 points · first shared 2016 · Discussion on HN
    9. 9
      A dozen lessons about product/market fit
      3 people · 5 points · first shared 2017 · Discussion on HN
    10. 10
      MoviePass. Premature Scaling?
      2 people · 5 points · first shared 2018 · Discussion on HN

    What HN people wrote when they linked it

    • toomuchtodoJan 2025

      Related:

      Mike Maples Sr., 1942-2025: Microsoft’s ‘adult in the room’ had a deep impact on the company - https://www.geekwire.com/2025/mike-maples-sr-1942-2025-microsofts-adult-in-the-room-had-a-deep-impact-on-the-company/

      A Dozen Things I’ve Learned From Mike Maples Sr. About Business and Investing - https://25iq.com/2016/07/01/a-dozen-things-ive-learned-from-mike-maples-sr-about-business-and-investing/

      Mr. Michael J. Maples, Sr. - IT History Society - https://www.ithistory.org/honor-roll/mr-michael-j-maples-sr

      140: Mike Maples, Sr. - Microsoft Legend | Legends & Losers Podcast [video] - https://www.youtube.com/watch?v=IHjDxy1Czys

      Mike Maples Interview - 7 May 2004 - https://www.robertgaskins.com/powerpoint-history/documents/ensmenger-cbi-interview-mike-maples-oh387mm-2004-may-07.pdf

    • mbestoNov 2021

      > Seems like market valuations aren't that closely tied to profitability at the moment...

      This trope needs to die. Not all "profitability" is the same.

      A few things to note:

      - "You will see many people talk about Amazon’s focus on “growth” vs. margins, but the right focus is instead absolute dollar fee cash flow."[0]

      - SaaS revenue is different.[1]

      - NetSuite's most profitable year was in 2009 (yes that 2009 when the great recession happened) because they simply turned off the S&M engine. [2]

      [0] - https://25iq.com/2014/04/26/a-dozen-things-i-have-learned-from-jeff-bezos/
      [1] - https://a16z.com/2014/05/13/understanding-saas-valuation-primer/
      [2] - https://soundcloud.com/a16z/a16z-podcast-why-saas-revenue-is-worth-more-than-traditional-software-sales

    • pelotonJan 2015

      From the LP pov, it boils down to capital concentration. Most LPs I've spoken with are not that different from Michael Kim (LP from the article) in that they are for capital concentration. It is the most controversial part of the offering.

      Reference:
      http://25iq.com/2013/01/16/charlie-munger-on-investment-concentration-versus-diversification/

      http://robgo.org/2013/10/21/decision-making-speed-of-big-funds-vs-seed-funds/

      https://twitter.com/trengriffin/status/264789822982471680

      https://twitter.com/sama/status/458094667972624384

      That said, in the end, real performance trumps everything.

    • awadJan 2018

      In a way, these dynamics remind me of the movie theater business. Here's a good read:

      https://25iq.com/2017/12/30/moviepass-premature-scaling/

      Given that music is generally not a substitutable good, margins can only be so strong on the core streaming product to your very point. I'm not really aware of any other revenue stream they may have (do they do ads?) and am curious what they might propose. Presumably they do have enough scale to be possible successful with something tied to monetizing their user data whether through ads or some other value-added service?

    • AJ007Aug 2016

      Really Batista is like an anti-Musk. I'm not sure I could find two billionaires(ex-billionaire) who were further apart.

      Charlie Munger's quote I read in Poor Charlie's Almanack a really long time ago resonated with me pretty well when I saw Batista being interviewed on Charlie Rose years back. “Bernie Ebbers and Ken Lay were caricatures – they were easy to spot. They were almost psychopaths." * Since no copy of the book online, https://25iq.com/charlie-munger-book-to-date-chapters-1-5/

    • jboy55Oct 2022

      Looking at the dot-com era, it probably would be more likely to compare crypto to the sudden rise and collapse of the 'dark fiber' companies.

      https://25iq.com/2017/11/11/the-1990s-telecom-bubble-what-can-we-learn/

      "Om Malik wrote a book on this period in which he estimated that $750 billion vanished when the telecom bubble burst. That’s a reasonable estimate in my view. The most interesting questions about a phenomenon like this are always: Why did it happen? What can we learn?"

    Related

    Rob Gorobgo.org51 people

    A Seed VC’s Decision Tree

    Rob Go
    Personal · last shared 2019
    Both Sides of the Tablebothsidesofthetable.com562 people

    Entrepreneurshit

    Both Sides of the Table
    Personal · last shared 2026
    Ed Zitronwheresyoured.at363 people

    The man who killed Google Search?

    Ed Zitron
    Personal · last shared 2026
    Scott Gallowayprofgalloway.com157 people

    WeWTF

    Scott Galloway
    Personal · last shared 2026
    Unicorn Freeunicornfree.com151 people

    I’ve Made $216,688 From Products This Year

    Unicorn Free
    Personal · last shared 2017
    Taylor Pearsontaylorpearson.me41 people

    Why Is Bitcoin Valuable?

    Taylor Pearson
    Personal · last shared 2026
    Dasleedaslee.me37 people

    Things I Think I Think on Bitcoin

    Daslee
    Personal · last shared 2015
    A Smart Bearblog.asmartbear.com407 people

    Avoid blundering: 80% of a winning strategy

    A Smart Bear
    Personal · last shared 2026