Ex just told you how they walk it down. A “motivated” seller can offer to sell much below the price. An attuned buyer can timely pop in to buy it. They need timing but not a lot of shares, imo.
The argument put forth is sellers are more “motivated” than buyers to exceed the price differential to get their trade. In other words, motivated sellers will submit to more pain to get their trade. Of course, shorts that need to cover benefit by this phenomenon, because once the price drops, they can cover more cheaply.
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