Now that I notice it, I can even hear the Indian in his voice and can't unhear it. Lots of little telltales, for example all the sentences starting in 'By...' at around 47s. This guy was born and raised in Ohio wasn't he? There is no way to explain this without recognising fundamental racial differences, or else at least acknowledging that this son of supposed 'successful assimilators' has spent so long surrounded exclusively by other Indians that he picked up generational hallmarks. Vivek remains the most radicalising exhibit of ethnic diversity in all my experience.