Great article! I have found this to be very true as I work to learn a new language at the age of 56. I live in a country that speaks that language and at times am totally immersed in it. It’s been amazing to see my gains over the past 18 months. Studying or practicing and then taking breaks from it has been a valuable combination. My mind makes headway and surprises me the next time I am challenged with a similar situation. What once felt like unfamiliar and tongue twisters now flow quickly any easily. Very interesting!