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There's really no good data to support this claim.

• romwell 3y ago
  >There's really no good data to support this claim. Fine. We know that languages did not exist at some point. We made them exist.
  • justrealist 3y ago
    Yes, I acknowledge that we have evidence that groups of tribal humans will evolve language constructs over tens of thousands of years. Whether that happens in 1 generation or 10,000 generations is completely unknown.
    • sudosysgen 3y ago
      As others have mentioned in this thread, the Nicaraguan Sign Language shows it can happen in years, not even generations.