Luc Cheung

Calculating the prediction is simple multiplication. But before that, we needed to think about the weight we’ll be multiplying by. Here we started with an average, later we’ll look at better algorithms that can scale as we get more inputs and more complicated models. Finding the weight is our “training” stage. So whenever you hear of someone... See more

Email GTD

The goal of the system is that the vast majority of emails don't get to you, because they don't need to.

You should only be responding to the very few emails per day that are important for you to take action on, and everything else should go to the relevant person.

To do that, everything needs to have a clear "place" it should go. The... See more

Finding Your Anchor Task

Doing more things does not drive faster or better results. Doing better things drives better results. Even more accurately, doing one thing as best you can drives better results.

Mastery requires focus and consistency.

I haven’t mastered the art of focus and concentration yet, but I’m working on it. One of the major... See more

These are the three necessary criteria for a great ferment: great ingredients, the proper environment, and patience. Without them, you will fail to create something funky and wonderful. With them, your creativity is the only constraint.

What makes fermentation so magical is that the most important ingredient is the one you can’t control: the... See more

So here's the story of how we missed Airbnb, one of the best startups to come our way in the past few years.

The Airbnb founders came out of the winter 2009 Y Combinator class. They came to see us during their time at YC. They told us about a great stunt they pulled at the Democratic Convention in Denver (in which Obama was nominated). They bought a... See more