Before we talk about how to measure content, let’s talk about measurement itself. Most people think of measurement as a practice of absolutes (I am exactly 5 feet 9 inches tall, my dog weighs exactly 98 pounds, etc.). With this mindset, things that can’t be measured exactly can’t be measured at all.
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However, when somebody tries to measure something intangible—like the value of content—it’s impossible to come up with an exact number. So, people assume content is immeasurable.