Recently, I was at an international potluck dinner. Almost everyone was studying for a PhD in Psychology, or already had one. Naturally, the conversation was interesting.
One fact that I learned was that Hebrew and Arabic are very similar. It should be easy to learn one if you knew the other. But because of Krashen’s Affective Filter Hypothesis, people are ‘blocked’.
I got a book recently because it is written using Arabic script. However, no one in my class of Arabic speakers could tell me the title. That’s how I learned that other languages use Arabic letters too, e.g. Farsi.