--- In email@example.com, "Gerry" <waluk@...> wrote:
> How much evidence needs to be compiled to show a relationship, one
> language to another. Or is this query also too abstract? When
> consensus occur, or is the process the mainstay of an academic.
Good questions. Not being a linguist, I'm not sure exactly how one
would answer them, but I suppose it is an incremental process that
occurs on a case-by-case basis, as more and more professionals come
to judge the evidence convincing. Any one else want to take a stab at
providing a better answer?