Human beings have been using visuals to communicate for some 40,000 years. Whether it’s a cave painting of a deer or a complex, computer-generated chart showing the steps involved in building a rocket, the aim is the same: Get the information across as efficiently as possible, in a universally understandable manner. Visuals rely on language and cultural cues significantly less than spoken or written words; in many ways, they’re simply easier for (most people’s) brains to process.
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