Method and Conclusion. See here.
Results. A ratings system was designed in terms of how difficult it would be for an English-language speaker to learn the language. In the case of English, English was judged according to how hard it would be for a non-English speaker to learn the language. Speaking, reading and writing were all considered.
Ratings: Languages are rated 1-6, easiest to hardest. 1 = easiest, 2 = moderately easy to average, 3 = average to moderately difficult, 4 = very difficult, 5 = extremely difficult, 6 = most difficult of all. Ratings are impressionistic.
Time needed. Time needed for an English language speaker to learn the language “reasonably well”: Level 1 languages = 3 months-1 year. Level 2 languages = 6 months-1 year. Level 3 languages = 1-2 years. Level 4 languages = 2 years. Level 5 languages = 3-4 years, but some may take longer. Level 6 languages = more than 4 years.
This post will look at the Classical Japanese language in terms of how difficult it would be for an English speaker to learn it.
Classical Japanese is much harder to read than Modern Japanese. Though you can get by with much less kanji when reading the modern language, you will need a minimum knowledge of 3,000 kanji for reading Classical Japanese, and that’s using a dictionary. There are only about 500-1,000 frequently used characters, but there are countless other words that will come up in your reading especially say special words used in the Imperial Court. Many words have more than one meaning, and unless you know this, you will be lost. 東宮(とうぐう) for instance means Eastern Palace. However, it also means Crown Prince because his residence was to the east of the Emperor’s.
The movie The Seven Samurai (set in the late 1500’s) seems to use some sort of Classical Japanese, or at least Classical vocabulary and syntax with modern pronunciation. Japanese language learners say they can’t understand a word of the archaic Japanese used in this movie.
Classical Japanese gets 5.5, nearly hardest of all.