 Lewis’s amendment enables us to circumvent the problem of finks and reverse-cycle finks. Martin’s live wire connected to the reverse-cycle fink, for example, is correctly predicted to be live. For the wire has an intrinsic property—the property of having free electrons, say—such that, if it were touched by a conductor, and if it were to retain that property for a sufficient time, then the wire would conduct electricity (because of being touched and having the property).