english: They gave up the ability to make stone tools and fishing equipment and clothing because the population of about 4,000 people was simply not large enough to maintain the specialized skills necessary to keep the technology they had.
non_english: Izgubili su sposobnost da prave alate od kostiju i opremu za pecanje i odeću, jer populacija od 4000 ljudi nije dovoljno velika da održi specijalizovane veštine koje su potrebne da se zadrži tehnologija koju su imali.