> Frank et al. (2008) describes two experiments on four Pirahã speakers that were designed to test these two hypotheses. In one, ten spools of thread were placed on a table one at a time and the Pirahã were asked how many were there. All four speakers answered in accordance with the hypothesis that the language has words for 'one' and 'two' in this experiment, uniformly using hói for one spool, hoí for two spools, and a mixture of the second word and 'many' for more than two spools. The second experiment, however, started with ten spools of thread on the table, and spools were subtracted one at a time. In this experiment, one speaker used hói (the word previously supposed to mean 'one') when there were six spools left, and all four speakers used that word consistently when there were as many as three spools left.
This and the rest of the comment remind me of the Pirahã language, in which there are purportedly two numerals but researchers can't figure out what they are: https://en.wikipedia.org/wiki/Pirah%C3%A3_language#Numerals_...
> Frank et al. (2008) describes two experiments on four Pirahã speakers that were designed to test these two hypotheses. In one, ten spools of thread were placed on a table one at a time and the Pirahã were asked how many were there. All four speakers answered in accordance with the hypothesis that the language has words for 'one' and 'two' in this experiment, uniformly using hói for one spool, hoí for two spools, and a mixture of the second word and 'many' for more than two spools. The second experiment, however, started with ten spools of thread on the table, and spools were subtracted one at a time. In this experiment, one speaker used hói (the word previously supposed to mean 'one') when there were six spools left, and all four speakers used that word consistently when there were as many as three spools left.