Final answer:
The question asks why everyone running across the Brooklyn Bridge looked white, even the black people. The answer explains that perception can be influenced by various factors such as lighting, distance, and visual cues, and the provided description does not offer enough context to determine why everyone appeared white on the bridge.
Step-by-step explanation:
The question is asking why everyone running across the Brooklyn Bridge appeared to be white, even the black individuals. It is important to note that this question assumes a misperception or confusion rather than a factual observation. When it comes to perception, different factors can contribute to how people appear, such as lighting, distance, and visual cues. In this case, the description provided in the question does not provide enough context to determine why everyone appeared white on the Brooklyn Bridge.