This whole thing is just crossed wires.

整件事就是个误会。

Meanwhile, other scientists have gone as far to suggest that we could actually have some crossed wires linking our visual perception to our senses of smell and taste on a physiological level.

与此同时，其他科学家甚至认为，在生理层面上，我们的视觉感知、嗅觉和味觉实际上可能存在一些交叉连接。

The expression originally comes from horse races, where they would put a wire at the finish line (where the horses would end up), and whichever one crossed the wire first was the winner.

这个表达最初来自赛马，他们会在终点线（马匹最终到达的地方）放一根铁丝， 谁先越过铁丝就是赢家。