"What is particularly notable in this special pleading is that it asks us to believe in a combination of abnormal phenomena and lack of evidence. Thus, for example, we could have accepted, in principle, that the river names of the Harappan areas may have been "Indo-Aryanised", if transformation of river names were the norm in such cases, even in the absence of evidence in this case of any earlier names. But it is not the norm: as Witzel points out, the names of most European rivers, to this day, ―reflect the languages spoken before the influx of Indo-European speaking populations are thus older than c. 4500-2500 B.C. Again, we would have had to accept that such a transformation took place here, even if it went contrary to the norm, if earlier "non-Indo-Aryan" names of these rivers were on record at least in the texts. But there is not the faintest clue, even in the oldest hymns, that any such names ever existed. This pleading therefore goes both against the norm as well as against the available evidence."