Another biological example (antibiotic resistance-conferring plasmids) of vertical transmission causing friendliness http://www.nature.com/ncomms/2014/141010/ncomms6208/full/ncomms6208.html …
@themattsimpson The basic problem with the modal interpretation of counterfactuals is that you have to specify which worlds are “possible”…
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@themattsimpson If you have a (modal) model (Kripke semantics), that’s what it does. If you don’t, then it’s ill-defined.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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