Geary writes (I'm minimizing his references to God): >Preventive maintenance, especially cleaning the >condenser coil, oiling the fan motor, tightening electrical connections may >well have prevented or at least forestalled this burn-out. Out of the explanation, a Popperian may produce an explanation of why it did short to ground: Preventive maintenace, viz. (i) Condenser coil gets cleaned. (ii) Fan motor gets oiled. (iii) Electrical connections get tightened. ____________________________________ The 'compressor' does not 'short' (to ground). Via reductio ad absurdum we negate the premisses: Non-preventive maintenance, viz. (i) Condenser coil is not clean, but _dirty_. (ii) Fan motor thirsty of oil (iii) Electrical connections loose. __________________________________________ Ergo, the 'compressor' shorts to ground. ---- The question is whether we need to apply the <> ('necessity') operator: <> Coil is dirty <> Fan motor is dry <> Cable connections lose _____________________________________ <> Compressor shorts. I don't think so. As Geary notes, "it ain't necessarily so". So what we can at most get is a probabilistic explanation. Geary wittily adds a human factor -- for it's _people_ who have to _intend_ to clean the coil, oil the motor and tighten the connections. In this respect, a 'compressor' is a human-teleological thing, unlike a milk-cow called Bossy who'll supply _milk_ regardless. Cheers, JL author of "Nature and Artifice: The Distinction and How Not To Make It" **************************************Check out AOL's list of 2007's hottest products. (http://money.aol.com/special/hot-products-2007?NCID=aoltop00030000000001)