This is Part 2 of my four-part guide to Covid masks. In Part 1, I introduced some concepts and explained the limits to my knowledge. In this part, I'll talk a bit about various kinds of masks.As I said before, I am not an expert in this field. I've seriously considered not posting anything at all for fear giving out bad information. But the thing is...I think I know some … [Read more...] about Windy’s Guide to Masks – Part 2: Types of Masks
Science
Windy’s Guide to Masks – Part 1: Basics
Like many people, I've spent some times lately learning a few things about masks. I wanted to share some of what I learned, because I think it will be helpful. However, I'm doing this with some trepidation because...I'm not entirely sure this is the right thing to do.That's because, to be very clear, I am not an expert in this field.What I am is curious about the … [Read more...] about Windy’s Guide to Masks – Part 1: Basics
The difference between data and a model
I saw that Donald Trump retweeted this and -- after getting over the fact that the President of the United States was retweeting pandemic analysis from an anonymous dude calling himself "bad cat" -- I wanted to respond to some of the things in the thread:In general, he's talking about charts of confirmed U.S. Covid-19 case counts per day, like this one that I posted on … [Read more...] about The difference between data and a model
Building the Model is the Easy Part
Apparently when the University of Illinois at Urbana-Champaign made their plans to return to live classes this fall, they based some of their planning on epidemiological models constructed especially for the purpose. This included a test, trace, and isolation plan which the models indicated would be effective at preventing community spread of Covid-19 on campus.UIUC had … [Read more...] about Building the Model is the Easy Part