PS: the 700-1000 hours figure comes from https://www.cambridge.org/elt/blog/wp-content/uploads/2018/10/How-long-does-it-take-to-learn-a-foreign-language.pdf htt

PS: the 700-1000 hours figure comes from https://www.cambridge.org/elt/blog/wp-content/uploads/2018/10/How-long-does-it-take-to-learn-a-foreign-language.pdf https://www.cambridge.org/elt/blog/wp-content/uploads/2018/1... Everyone quotes the FSI estimate, but I find this one much more generalizable.