Hi everbody! I hope you're doing great
I wonder if a person could make a notable progress in learning a foreign language if this person COMPLETELY isolated themselves for a day with this language. By complete isolation I mean ZERO(which, I think, possible) exposure to ANY other language and very INTENSIVE EXPOSURE to the target language over a period of a WHOLE day. If not, can they over a one week period?
And, if you guys have experience with this, feel free to share in this thread!

