I see on the website (https://www.non-trivial.org/program) that the short course is no longer presented. Now it is all about the fellowship. Is there a reason?

Maybe also advertise the Slack in here? https://forum.effectivealtruism.org/groups/wiDFRkBrgfiXrPcmb

Very happy to see this! But for information, the Slack link is expired (if you update it, be careful because it's in multiple places in the article) @SofiaBalderson  @Cameron.K 

In a scenario where this tech works as well as we are dreaming of and has generalized in hundreds of millions of buildings: isn't there a risk of a general weakening of our immunity systems, making us more vulnerable over the medium-long run? 

Basic logic behind this question: certain/many classes of virus eradicated from many modern buildings => our bodies are generally less prepared to encounter it in other settings.

(epistemic status: I'm very ignorant in these fields)

Your next question seems like a crucial point to me. Bed nets are imperfect but since mosquitos can feed on on other animals, I suppose mosquito populations don't disappear when entire regions use bednets more often, they just slowly become less malaria-infected.

Very enthusiastic about this project, which I agree can fill an important gap in the learning journey. I will follow with great interest!

I think it would be relatively simple to replicate for languages other than English in the future. (after this passes beta phase, of course!)