As we all know BTS and Exo were/are the only 2 groups in the 3rd gen to sell over a million. Just like h.o.t and g.o.d were able to sell a million. Do you think selling a million copues will be a norm in the 4th gen? Or will history repeat itself? Because in the 2nd gen there was a drastic fall, even amongst the top groups such as tvxq, suju and bigbang. A full generation gap.