ABSTRACT

Thislastchapterisnotintendedasafull-fledgedconclusion,but ratherastheplacetodiscusstheproblemofnormevolutionandillustratetheresultingexistenceofmultiplepathtrajectories(Sections1 and2).Thefinalsection,however,wantstoclosethebookbyshortly summarizingthemainpointsthathavebeenpresentedintheprevious chapters.