Model Citizenry

(aka. “America’s Next Top Model”)

If you have been watching the U.S. Coronavirus Task Force briefings, you know that Dr. Birx (“Debbie” LOL) is emerging as a key player. In case you missed yesterday’s, watch this for a minute or two:

Apparently, our experts were unhappy with the model from Imperial College, so they […]

Good news and bad news

First, the bad news. Here is an epidemiological paper from Imperial College London that has been making the rounds. They base their conclusions on their models, which they claim are robust against modest changes in their assumptions. See also this profile of the principal author.

They say if we take sufficiently draconian measures to get […]

Get the data

The derivative of an exponential is an exponential. So when the graph of total cases has the same shape as the graph of its day-over-day change (first derivative), and the same shape as the increase in day-over-day change (second derivative), and so on… We are in the exponential phase.

Click here for worldwide numbers. Click […]

Yes, testing is important

I have heard and read some people saying that testing for the coronavirus is not very important. They usually seem to have a physician friend who told them something like this: “I do not need to test anyone because the results are not actionable. We have no pharmaceuticals, and we are not going to intubate […]

Air Quality Part 2: The Dylos DC1100 Pro

The first gadget I purchased was this bad boy, the Dylos DC1100 Pro:

If I could have just one device for measuring air quality, this… Well, this would not be it. It does not measure CO2. It does not measure humidity. It does not measure temperature. It does not have a Web server […]

Air Quality Part 1: Introduction

(related video)

When Northern California was burning, and I saw articles about the Bay Area’s air quality being “worse then Beijing”, I started to wonder… What does that mean? How is it measured? Can I measure it myself? Can I mitigate it?

This will be a short series of posts to do a brain dump […]

Introducing Google Boycott (beta)

I don’t get it. Everyone from Tyler Cowen to Kid Dynamite to Felix Salmon to… um… Hitler is treating the end of Google Reader as if the decision comes from God.

What are you people, sheep? Doesn’t anybody push back against corporations anymore? Quit whining and do something. Stop asking for “help replacing Google Reader” […]

New Year’s Resolutions

Some trivial, some mutually contradictory.

Waste less time Write more often Exceed 30k rep on StackOverflow Read the Aubrey-Maturin series Bike more often Follow @SanJoseTrails Reconnect with various people

Wasteland 2

This is one of the more interesting applications of the Internet I have seen.

I do not have much time for computer games. But I used to. In the late 80s, a buddy and I spent many, many hours playing Wasteland on his Commodore 64.

Wasteland is one of the two best computer games I […]

The end of the Space Age

I grew up in the shadow of Apollo.

Like all American boys at the time, I wanted to be an astronaut. I was hypnotized by anything to do with space exploration, whether science fact or science fiction. Although I never really thought of it as fiction. Not that I believed the Enterprise or Moonbase Alpha […]