*Rounding* is a mathematical process in which a complex number is replaced with a simpler one, such as* 1.343 *rounded to *1.3*. It makes numbers easier to communicate and work with. However, rounding applies not only to math but to all aspects of our existence.

Starting with the essentials (matter, space and time ): all matter is composed of atoms, which in turn are almost 100% space. If you could remove *all* the space between *all* the atoms of *all* the skyscrapers in New York city, they would fit within a matchbox. Why then do we perceive matter as solid? It is because our senses are simply not acute enough to detect the spaces. If we were much smaller (or more sensitive), we would see the spaces. Instead, we “round” the spaces up, filling in the gaps and thereby perceive matter as solid or liquid.

Similarly, we round space. Again, because we cannot perceive vastly small spaces, we round up to the nearest perceptible unit, usually about 1 mm, depending on the situation.

Finally, we round time. When we say it takes 20 minutes to do a task, we generally don’t mean *exactly* 20 minutes but rather 20 minutes, plus or minus a few minutes. Even for events that we measure precisely, again, because of our perceptual limitations, we cannot perceive tiny amounts of time, such as one ten-thousandth of a second. We round to the nearest second, minute, hour or even day.

We also round our senses. No two people perceive colour, sound, smell, taste and texture the same way. As with matter, space and time, we perceive these things within a certain perceptible range. It would be impossible, for example, to differentiate two nearly identical colours, one .000001% brighter than the other; we round up the colours and see them as identical. You are rounding the text displayed here. Your eyes and mind fill in the pixels this text is composed of to see the letters and words.

Now, if such fundamental and seemingly objective aspects of our existence as matter, space, time and our basic senses are rounded, how much more so the less objective and more ethereal aspects.

Concepts, thoughts, ideas and feelings are constantly “rounded”. In fact, because these things are non-physical, it would be tempting to say that math does not apply and that they cannot be “rounded”. One could argue that it would be ridiculous to say that you could like someone 12% more than someone else, or that a political party is 14% better than another. That may be true, but you can measure *aspects* of these things. For example, like-ability by itself is not measurable, but surveys where each person rates or ranks their feelings to the other is. The moment you introduce math or statistics, you can have rounding.

Rounding therefore, is the process of taking something and replacing with something less precise but easier to understand and perceive. In that sense, it is one of the purest forms of technical communication. For it is the job of a technical communicator to take something complex and simplify it so that it can be practically understood by the reader.

It is a constant struggle to determine the degree to which content should be simplified. Simplify it too much, and you lose valuable information; simplify it too little, and the content becomes inaccessible. Because of rounding, no two technical communicators will ever document something the same way.

May all your content be well-rounded.