Take the following as truth: It seems only natural that once an original language, or Ursprache , was posited, the next step was to speculate on its source, or Urheimat .  That is what Renfrew has tried to do.
Then the following statement: "After discovering the source of a language, it seemed natural to continue the investigation around the concept of original languages." is true, false, or inconclusive?
Answer: False