Some people describe these market changes with this metaphor: "There used to be a lot of birds on the tree, and you could bring several down with one blast of a shot gun, but now there aren't so many birds on each tree, and you've got to aim carefully with a rifle."
有人形容這種市場變化，就像「以前樹上的鳥很多，可以用散彈槍，一槍打下好幾隻；如今鳥少了，就得仔細的瞄準，一槍一個。」