I co-founded Opendoor ($10B+ rev). Today, I’m launching Summation.
We raised $35M from Benchmark & Kleiner Perkins to build an AI analyst you can trust.
Here’s where Claude and ChatGPT fall short: 🧵
Searched my inbox for "Jet Blue." Zero results. If your brand uses CamelCase, put the spaced version in your footer once. Nobody should need your brand guidelines to search their own email.
@_balaji_km@TheRideshareGuy This omits speed, which is the #1 factor in transportation decisions. A major impediment to AV Ridehail adoption is that they drive safely in world where our streets are designed for humans to drive far above the speed limit.
New-urbanismmaxxing at @culdesac after getting a front-row look at @ryanmjohnson’s vision for walkable cities.@JoinEdgeCity. The future has less parking lots
I spent 24 hours inside America's newest car-free neighborhood, with the man who designed it. @ryanmjohnson
It made me realize how broken everywhere else actually is – and how American cities are about to change forever.
What I learned is that autonomous cars will reduce the need for the majority of parking. When you remove parking lots and garages from a neighborhood, you free up an enormous amount of land.
That land can become courtyards, gardens, restaurants, and shops all within walking distance of every front door.
The company that made this town, Culdesac built an entire neighborhood in Tempe, Arizona on this idea.
And the result is something that could be the blueprint for how we design our neighborhoods once AVs become fully adopted.
The insight is simple: parking doesn't just take up space, it kills the energy of a place. Remove it and you get density, walkability, and community back.
Now they're scaling it. More cities, more neighborhoods, a different vision for how Americans live.
Most people think walkable cities are a European thing — too old, too dense, impossible to replicate here.
Culdesac is proving that's wrong, one neighborhood at a time and giving us insight into how we can develop neighborhoods for AV age.
@culdesac