There is a popular theory that it takes at least 10,000 hours of focused practice for a human to become expert in any field. In Japan, there are...
Wiwọle Kolopin ọfẹ, Wa fun ohunkohun Ko si Awọn ipolowo, Milionu ti awọn akọle ati fi kun ni gbogbo ọjọ, Gbogbo awọn iru ẹrọ ati Iṣapeye Ni kikun, Nibikibi ati nigbakugba