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February 17, 2017

Greetings from Nairobi!

I just recorded my first Facebook Live from Kibera slum this morning. It was pretty crazy — Kibera is an informal settlement with nearly a million peop...

February 9, 2017

I just published an ad that almost got banned by Facebook:

But it’s for a good cause.

At least 60% of what you put on your face goes into your bloodstream. When I found out tha...

February 2, 2017

In 1948, a young Belgian woman, frustrated with her secretarial job in Paris and restless after the war, decided to hitchhike around the world. She started with just $5. 

Four...

January 30, 2017

I've tried to avoid commenting too much on Trump's election to avoid demonizing Republicans and people in my network who support him.

But at a certain point, policy transcends...

January 18, 2017

Yesterday I rolled up to 180 Sutter Street on my bike, and a young man in an athletic shirt with a subtle blue logo ran out to greet me. “I’ll watch your bike,” he said. “Jus...

March 1, 2016

From tap dancing to Nobel speeches, a list of my favorite idea vectors.

Over the holidays I wrote up this list of books that changed my life, in categories that matter deeply...

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