Despite a plea by one South Asian scholar to be “. . . hopefully somewhat free from the ghosts of the past”, the legacy of a post-Enlightenment weste… - Jim G. Shaffer

A cultural tradition refers to persistent configurations of basic technologies and cultural systems within the context of temporal and geographical continuity. This concept facilitates a stylistic grouping of diverse archaeological assemblages into a single analytical unit, while limiting the need for establishing the precise nature of cultural and chronological relationships that link assemblages but imply that such relationships exist..

Linguistic reconstructions have a reputation of scientific validity based on the study of existing languages (written and non-written). However, linguistic reconstructions based upon supposed rates of linguistic change are the archaeological equivalents of estimating absolute chronology from the depth of deposits. There are simply too many intervening cultural and historical variables to permit any great degree of cross-cultural accuracy. In archaeology, such methods were replaced when better aids to cultural identification, such as radiocarbon dating, became available. Linguistic reconstructions for the area are no longer independently supported by the archaeological data, and even if one is reluctant to disregard these reconstructions completely, the present data nonetheless suggest critical reevaluation of earlier interpretations.

While lacking fullest data, there is a growing consensus that the Harappan culture originated as a result of local cultural developments. "Mesopotamian" inventions are not needed to explain it.