If my 6yo could understand why universal mitigations like lockdowns dont work, so do you.
And while you are at it, play the game before it expires:
And last but not least. A version of my 'math' explanation that you can explain to anyone. My mom approves.
And if you want others to know more about these topics. Tell @maestro_rayo to stop playing games and send my way a few drafts. And retweet. Likes are great, but retweets become viral.

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More from @federicolois

7 Nov
1/ The first rule of Lockdown Club is: You do not talk about deaths per million. The second rule of Lockdown Club is: You do not talk about deaths per million.
2/ Third rule of Lockdown Club: someone yells Sweden or herd immunity, you point out the other Nordics. Fourth rule: only two metrics to a discussion, cases and cases.
3/ Fifth rule: one lockdown per season, fellas. Sixth rule: no deaths, no herd. Seventh rule: lockdowns will go on as long as they have to.
Read 4 tweets
17 Oct
Controversial opinion: those that say its not possible to shield the vulnerable, also won't be able to prove if there is a difference (or lack of it) between the trajectory of the virus at Madrid and Stockholm. Who do you think has let it rip?
1/ There were many "Eureka" moments while working on our paper, but probably the most important of all happened pretty early. Non-linear models are highly sensitive to:
2/ We decided early on to eliminate as many parameters as possible. Location parameters are simple to fix, they are location parameters. Viral parameters also, you can go and say R0=3.3 and you made a choice. How many parameters are left if you do that?
Read 32 tweets
13 Oct
1/ Our preprint with @LDjaparidze is online at @medrxivpreprint
"SARS-CoV-2 waves in Europe: A 2-stratum SEIRS model solution"
medrxiv.org/content/10.110…
2/ We extended the SEIRS model to support stratified isolation levels for healthy <60 and vulnerable individuals.
3/ We forced the model to predict daily deaths curves and the reported age serology ratio for key metropolitan areas in Europe. The immunity level estimations obtained were: Madrid 43%; Catalonia 24%; Brussels 73%; and Stockholm 65%.
Read 11 tweets
2 Oct
0/n Thank all of you who participated in 'The demon game'. I am taking a screenshot because when knowing the whys it loses all value (there is no more asymmetry of information). These 182 responses are 'The sample'.
1/n You may have already known about this thought experiment you just run on, mainly because there are many different variants of it in the literature. This is the one that I have seen lately:
2/n This example is good because the results are clear-cut to show 2 typical sources of error. Poor experimental setups are the bain of our existence and there are myriad ways they can go wrong.
Read 13 tweets
1 Oct
I have my badge of honor. At this rate, the fat tail event is there won't be more twitter to block. :D Image
For context, this is why he got mad with me.
And I love the depth of the rebuttal. Image
Read 4 tweets
25 Sep
[1/n] Preparing everything to respond to the question: "Under our isolation epidemic model. Is it possible to correct government policy mismanagement starting at the end of July in 90 days for Madrid, Catalunya and a few other cities?" What do you think? Answers in an hour or so.
[2/n] For those that are new to this thread, you can prepare and hone your skills in modeling with the Harmless Virus Game:
[3/n] And the more difficult but also important for this new thread "The Vaccine Gamble" game:
Read 20 tweets

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