The common state of affairs is to have overlapping versions of hominids, And as you think of the implications of that, here's a brief history of the universe.
한종과 한종 끼리만 겹치는게 아닙니다. 이게 의미하는 게 뭘까요. 우주의 역사를 간략하게 보도록 하죠.