So that when you're 90 years old and you've lost your memory, you can't see clearly you're hard of hearing and basically be alone then then this will be extremely useful to you.
تا وقتي که تو 90 ساله ميشي حافظه ت ضعيف ميشه ، کم مي بيني ، کم ميشنوي و بنابراين هيچکس تو زندگيت نخواهد بود اون موقع