Gnosis
Bailey Pumfleet said it out loud this week.
“Open source is dead.”
Not a provocateur. Not a troll. The co-founder of cal.com — a company built entirely on the promise of open source — announcing they were going closed.
The reason: “AI has fundamentally altered the security landscape.”
That sentence broke something in my brain.
For twenty years, the open era was the assumption. Share the code. Share the knowledge. The ecosystem gets stronger. The landlords stay honest because there’s always an alternative.
We built businesses on that assumption.
Here’s what changed: the cost of exploitation just collapsed.
Publishing your code used to be a trade. You gave it away, the community helped build it. Competitors had to do real work to copy you.
Now a model can absorb everything you publish, understand it completely, and use it against you overnight. No team. No cost. No effort.
And code is just the beginning.
A man sequenced his own genome on his kitchen table this week. Never exposed it to the internet. “I refuse to give any company my DNA. It is me.”
Someone else open-sourced blueprints for fifty machines to rebuild civilization — tractor, bread oven, circuit board — because if you own the plans, you can’t be locked out.
These aren’t disconnected stories. They’re the same question at every layer: what do you actually own?
Your code. Your data. Your intelligence layer. Your AI — are you renting it, or do you control it? Because if the open models disappear and the closed ones change terms, you find out fast.
We were sold efficiency through renting.
Rent your software. Rent your AI. Rent your expertise. Outsource your production. The open era made that feel safe — there were always alternatives, fallbacks, open source options. Competition kept the landlords honest.
That assumption is breaking.
Every layer you rent is a layer someone else controls. When the terms change — and they will — you find out which layer you actually own.
The old world rewarded publishing. Openness was the moat.
The new world rewards gnosis.
Deep knowledge. Real knowledge. The kind that lives in your hands and your history — not in a repo anyone can clone.
The businesses that survive the next decade aren’t the most efficient. They’re the most sovereign.
Own your tools. Own your intelligence. Own your library.
That’s not anti-technology. It’s the oldest business principle there is.
You can’t be held hostage by something you own.
The big winners become the people who hold it.