The question was about conlangs, which have the advantage of being designed to be easier to learn. Esperanto is so easy it can be learned in negative time. ht

The question was about conlangs, which have the advantage of being designed to be easier to learn. Esperanto is so easy it can be learned in negative time. https://en.m.wikipedia.org/wiki/Propaedeutic_value_of_Esperanto#:~:text=The%20propaedeutic%20value%20of%20Esperanto,explore%20other%20cultures%20more%20successfully https://en.m.wikipedia.org/wiki/Propaedeutic_value_of_Espera....