这种错觉来自于固有的因为缺乏对深度的视觉线索而导致的模棱两可。
There are other optical illusions that originate from the same or similar kind of visual ambiguity, such as the Necker cube.
视差滚动使背景图像比前景的内容移动得更慢，继而产生深度和沉浸的错觉。
Parallax scrolling involves the background image moving slower than the content in the foreground, creating an illusion of depth and immersion. Image credits: squarespace.
深度的错觉涉及在平面背后元素与元素间的连结。
The illusion of depth carries with it the implication of connection between elements that are behind each other on the plane.
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