Sitemap - 2025 - ARK Strategy
How I Grew My Substack From 0 to 1,200 Subscribers in 6 Months
The 8 Best Books I Read in 2025 (History, Business & Fiction)
Layoffs, AI, and the “new” career moat — Why You Should Be Building a Portfolio Career in 2026
The Strategy Memo: December is When to Renegotiate Every Client
Stop buying stuff. Start buying leverage. (Black Friday 40% off)
The Power of an M5 Mac for Local LLMs
How to Build a Career Moat in the Age of AI
Executives on the Exit Ramp: How Meta’s CRO Embodies the New Entrepreneurial Era
How to Save $10.5 Million (At Work)
7 Timeless Lessons from Warren Buffett’s Berkshire Hathaway Letters
What One Recent Job Rejection Taught Me About Hiring in 2026
College Was the Plan. A Portfolio Career Is the Reality
Museums: What are they Good For?
How I Used Google's Notebook LM to Turn My Career Framework Into a Promo Video (by Mistake)
What I Learned at Substack's NYC HQ About Owning Your Audience
4 Moves I’m Making After Two High-Signal Recruiter Conversations
A Dispatch from the Edge of Understanding
A Hedge Against "Irrational Exuberance"
The Rise of the Portfolio Career: Surviving the Post-AI Economy
Three Ways to Decarbonize a City Block (and Your Bathroom Cabinet)
New Book Release! 'From Tehran to Tokyo'
How I Built a CustomGPT to Represent My Non-Linear Career
Career Advice for Columbia Students: 3 Alum Lessons
The Future of America’s Safe Haven Status
Inside Tech:NYC Demo Night with OpenAI
The Strategy Memo: We Are All Becoming Operators Now
How AI is a Game Changer for the Leader Who Reads
What I've Learned After the First Year of Working for Myself
The Last Immigrant in My Family — and the Work Ledger He Kept
Chief of Staff Job Description: 7 Red Flags to Watch For
Book Announcement: The Portfolio Career!
The Hedge Fund Triathlon: A Field Guide to Forced Team Bonding
Should Consultants Share Their Network? The Rolodex Rule
What Books Did Charlie Munger Recommend? Start With These 7
The 50-Book Playbook That Made Charlie Munger a Billionaire Thinker
I Flew to Patagonia to Escape My Old Job. It Followed Me.
Why I Moved from Business to Philosophy, and Hit #50 Overnight
My 10th Great-Grandmother Was Hanged at Salem in 1692
The Strategy Memo: The Reluctant Showman
Leading Without Authority: A Sudden CEO Exit From the Alps
Laid Off Twice: How I Built a Portfolio Career Instead
The Strategy Memo: You’re Not Distracted. You’re Being Monetized
#84 Rising in Business on Substack
This Month in Author Royalties: Global Domination, But Make It €9,13
Captain’s Log: Sailing as Leadership Development
I Wrote a Book on the History of Human Capital. Here’s Why.
After the Term Sheet: Why Every Great VC Needs a Cynic in the Room
The Labor Market Is Broken. And I Have A Spreadsheet to Prove It.
What the C-Suite Really Thinks About Your Job and AI
The Rung’s Missing: Good Luck Climbing
Lee Radziwill's Estate Sale: A Change Management Lesson
On $20K Plane Tickets and $40K Linens
Why Bob Iger and 6 Other CEOs Started as Assistants
The Executive Transition Playbook: Lessons from 2 CEO Exits
Pride and (Professional) Prejudice
Interning at the Ghost of Lehman Brothers: 3 Lessons
Why the Best Problem-Solvers Work in the Grey Zone
6 CEOs. 5 Industries. $22B+ in Enterprise Value. Here’s What I Learned.