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## My own explanatory threads on Twitter ##
+* [Problems with the definition of “herd
+ immunity”](https://threadreaderapp.com/thread/1250817310526525440.html)
+ (2020-04-16).
+
* [The problem with using models to predict the
future](https://threadreaderapp.com/thread/1249738327143501824.html)
(2020-04-13).