Teacher Star

"The number of his fans is super scary, there are 1.4 Billion if you erase the fractions!" "The country's educational ecology has changed because of his fame. Doctors drive for him, and postdocs are willing to shine his shoes!" "If you want to attend one of his classes, you have to make a reservation two years in advance, but there is no guarantee of a seat!" "If you invite him to the show, you need to pay him by the second!" So awesome, who is he? ***