In order to perceive depth properly, your eyes must move slightly inward or converge. In so doing, people are able to determine if objects are close to them or far away. Convergence is also a term commonly used in statistics or mathematics referring to a point where two or more data points or pieces of information encounter one another. The easiest example that most of us can identify with comes from high school algebra where we used graphs to plot X and Y axes. The point where these two axes cross one another is a convergence.

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