Luc Cheung

The more senior the designer, the more abstract the problem they should be solving.

To break it down more tangibly, let’s look at some examples of levels and appropriate responsibilities:

Designer Lvl 1: Design a form that lets people edit their profile. Pretty scoped—assumes there is a profile, and that the solution takes the shape of a form.

Design... See more

If you look around, you’ll notice the people and organizations moving the fastest are the focused ones. Not only do they focus on a few ideas, but within the scope of those ideas, they are able to focus on the key variables.

Identifying the variables that matter comes with focus. When you commit to living in a problem, you understand things about... See more

Okay, if you had infinite time, what would you build?”

If you’ll indulge me, here’s my list of potential projects, with light editorializing.

Energy supply

• Synthetic fuel.


• Better polysilicon production tech. The Siemens process feels paleolithic.


• Flexible silicon solar arrays, ground mounted and ultra cheap (<$30k/MW).


• Radioactivity applications. “M

... See more

Another stance I’m taking is that I’m not going to try to go super deep on any of the books unless I really want to. I’m not going to force myself to fully understand parts that bore or disinterest me, nor am I going to try to go through multiple translations or interpretations to fully sus things out.

Isn’t that a waste? I don’t think so. A book... See more

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