Building friction into community ensures best-in-class retention: ~85% of Bilibili users retain after 12 months.

One of the most intelligent case studies in design is the Chinese tea cup. They’re made without handles simply because if it’s too hot to touch, it’s too hot to drink.

Humans naturally want to add more. Add a cardboard sleeve, add a warning on the outside of the cup, add a handle. The result of all these things never cools down the actual contents.

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Writing novels is hard, and requires vast, unbroken slabs of time. Four quiet hours is a resource that I can put to good use. Two slabs of time, each two hours long, might add up to the same four hours, but are not nearly as productive as an unbroken four. If I know that I am going to be interrupted, I can’t concentrate, and if I suspect that I mig... See more

What do you consider your greatest achievement so far?

Building a family. Building is a political philosophy – a very noble act. We talk a lot about the virtue of building in Silicon Valley, and for most people, family formation is the deepest and most tangible way in which they’ll experience building something from nothing that outlasts themselves... See more

Great, great question. In the world of writing, everyone wants to succeed immediately and without pain or effort. Really? Or they love to write books about how to write books, rather than actually writing . . . a book that might actually be about something. Bad advice is everywhere. Build a following. Establish a platform. Learn how to scam the sys

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Maybe “what have you done for the world” isn’t even the right question. It assumes an acting upon, separate from-ness. What if the good stuff happens less when you act upon the world and more when you become one with it? Part of it.