Inference ≠ Training. Memory ≠ Training.
What AI remembers, what it forgets—and what never makes it into training
Jack Arenas
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How MCP Enables Vertical AI
Why tool use is getting commoditized—and what still counts as a moat in the age of MCP.
What Raising Over $900M Taught Me About Fundraising Strategy
Think of each funding round as part of an ongoing strategy—a multi-stage game, where every decision has ripple effects on the long-term trajectory.
My Next Step: Joining Founder Collective
After a decade of building and scaling startups, I’m excited to embark on my next chapter as a Principal at Founder Collective in their NYC office.