KEYWORD: de-extinction Experts in bioengineering, zoologists, ethicists and conservationists recently met in Washington, DC for a public forum on "de-extinction." In a message dated 4/14/2013 8:18:55 A.M. UTC-02, donalmcevoyuk@xxxxxxxxxxx writes in "Re: will they darken the skies once more?" Like the passenger pigeon, the Logical Positivist when de-extincted might face issues over parental control and assistance, but my suspicion is that their putative father, David Hume, never actually cared that much for them If I may introduce a topic of my liking, there's also Neo-Kantianism (and for that matter, neo-Gr*ceans. It was my idea for a while that the use of "neo-", in neo-Kantianism (or 'neo-Gr*cean') implicated that Kantianism was extinct. For that reason, I would freely use expressions like "palaeo-Kantianism" (or "palaeo-Gr*cean") to refer to the views of the _old_ allegedly extinct Kant (or Gr*ce). ---- I actually think that the verb, 'de-extinct' is an interesting one for logical analysis. Suppose we call a passenger pigeon an 'x'. McEvoy will use temporal subscripts (or indexes) here, and say, ""Ectopistes migratorius" is flying" in time t1<tn where t1 is a time predating "tn" or 'now'. Now, the idea that the 'ectopistes migratorius' is _extinct_ then requires a mere statement of contingent fact to the effect that no Ectopistes migratorius flies today. Note that in the metaphorical use that McEvoy gives to 'de-extinct' the logical formulae are different. And so on. Cheers, Speranza I have changed the subject line to a different expression. ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html