I feel my capacity to learn has grown since making an effort. I also used subtitled foreign language films to help with my dyslexia, a 'coping strategy' became a mild form of savant-ism [so-to-speak] in linguists and abstract thought...
I love to 'dissect' language and get the meaning
from the originator, or a good approximation of it. Having multiple languages teaches you slightly different nuance that can come from disparate culture. Having at least a mild empathy for another language gives you a greater 'Human' perspective and [I feel] a better chance of assimilating information. Maybe even raise your score in a standard IQ test. [if numbers float your boat ;0)]PS
As a [newly declared] 'observer' of 'Humanity' [sic George Carlin - Jupiter] I do use
solipsism as an 'armour' ( or pasta flinging =]:¬_) ) :0þ