Scientists considered collectively are remarkably single-minded in their views about what is important and what is not. If a graduate student gives a seminar and no one comes or no one asks a question, it is very sad, but not so sad as the question gallantly put by a senior or a colleague that betrays that he hasn't listened to a word. But it is a warning sign, a shot across the bows.

Outbreeding hinders earnest studies of archaeogenetics, making it thorny to know precisely about ancient populations, migrations and linguistic groups.

Data were tested for equiproportionality and Chi-square test associated p-value is reported when the difference is statistically significant.

It is the differings and deferrings of language that produce meanings, truths and values […]