https://news.ycombinator.com/item?id=18063362
Posting anon.
In 2009, the startup where I was working was hitting the skids, and our investors (correctly) were not willing to back us. We all kept grinding for a month or two in honorable futility, but after a while, my bank account depleted and I had to go.
To make various ends meet and to keep my mental health during the wind down however, I took up some contract work that I found through various friends in the SF startup scene. One company that I really liked and did some small stuff for was Burbn, which was a mobile-only location check-in that was hinged around taking photos of your location.
Missing my friends in NYC (I made a lot of friends in SF, but my inner circle were my college buddies from CMU; I went to tech and they went finance, sigh), I decided to leave SF to head to NYC and get a fresh start.
As I was leaving, I wanted to tie up a few loose ends, so I emailed my contact at Burbn and said I was likely to be unavailable for any more work, but that I liked the project and hoped for the best for him. He responded and said that he was near funding on a small pivot, and that if I was interested, there might be a full-time role available. I declined - I was mentally done with SF and the startup scene (Larry Chiang, 111 Minna, the rise of FB spam-crap like RockYou, etc.) as it was then.
That person was Kevin Systrom; that pivot was Instagram.
https://en.wikipedia.org/wiki/TippingPoint
They switched from an internet appliance (kind of like an early Chromebook) to smart deep packet inspection firewalls. Not a ton in common between those except that they both require hardware to be built.
If I remember right, local lore was that they pulled it off partly by realizing early that they needed to change direction and being well-funded enough that they had enough cash to start over.