During that time Facebook grew to become a company worth many billions of dollars. Because of that, Callahan's net worth grew to many millions of dollars.
Because of all those billions and millions, you might imagine Callahan joined Facebook in some glamorous fashion.
Back in 2004, Facebook was still a tiny startup with a few million college-kid users. Its employees were basically the same age – sometimes younger.
They all worked out of a house in Los Altos, Calif. Out back, there was a pool with a zip-line running over it.
One night around 11 p.m., the doorbell rang.
Facebook's first chief operating officer, Dustin Moskovitz, answered.
There stood Ezra Callahan.
Moskovitz said, "Hello."
Callahan said, "Hi."
Then there was an awkward pause.
Ezra went on: "Uh, I'm Ezra. I work at Facebook now. Sean hired me."
Sean was Sean Parker, the Napster co-founder who had become Facebook's president after befriending Zuckerberg.
Moskovitz said, "Oh, hmm. He didn't mention that. Welcome, I guess ..."'
Ezra said, "Yeah."
There was another awkward pause.
Moskovitz said, " Ok, well I guess I'll see you on Monday then?"
Ezra said, "Oh, also I live here now."
The story reminds me of how dingy, strange, and bizarre mammoth Internet companies can be at their beginnings. Sometimes the beginnings of great things can be very humble — and a little weird!
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