You read an email.
Then another.
You respond to a message, check a notification, search for an answer, read an article, and ask an AI a question.
None of these things seems especially difficult on its own.
But by the middle of the day, you may already feel mentally tired.
Why?
The Challenge
We have access to an extraordinary amount of information.
And getting it has become remarkably easy.
The internet made information widely available. Smartphones put it within reach almost everywhere. Now AI can provide detailed answers on countless topics within seconds.
That is a tremendous benefit.
But it also creates an interesting challenge, and an opportunity.
Getting information has become easier. Processing it has not.
Every email, message, article, document, notification, search result, and AI response asks for some amount of our attention.
A little here.
A little there.
Over the course of a day, it adds up.
So perhaps the challenge is not simply that we have too much information.
The more useful question is:
How do we make all of that information easier to process?
What the Evidence Tells Us
Researchers have long studied the limits of human attention and working memory.
Working memory is the small amount of information we can actively hold and work with at one time. Our capacity is limited, especially when information is new or complex.
That matters because modern communication constantly asks us to process new information.
An email may compete with a notification.
A document may compete with several open browser tabs.
A meeting may be followed immediately by messages, search results, and another task that requires our attention.
Information is now a constant part of everyday life.
Our mental capacity does not expand simply because more information is available.
And that creates an important challenge for anyone trying to communicate.
When something is difficult to follow, the reader has to do more work.
They may need to reread a sentence.
Search through a long email for the important point.
Work out what an unfamiliar term means.
Or hold several disconnected ideas in mind before understanding how they fit together.
Put those pieces together, and a simple principle emerges:
Good communication should reduce unnecessary mental work.
A Better Way to Communicate
This is where cognitive efficiency becomes useful.
Cognitive efficiency means presenting information in a way that makes it easier to understand and use.
That does not mean making every message short.
And it does not mean removing important detail.
It means making the reader work only as hard as the idea requires.
In practice, that can be fairly simple:
- Put the most important information first.
- Organize ideas in a logical order.
- Use headings to show readers where they are.
- Keep paragraphs focused.
- Remove words that do not add meaning.
- Use familiar language when a simpler word works just as well.
None of these techniques is especially complicated.
That is the point.
The writer does more of the organizing so the reader has less organizing to do.
Make Information Easier to Receive
We are unlikely to return to a world with less information.
And we probably would not want to.
Easy access to information helps us learn, solve problems, make decisions, and understand things that once would have been difficult to find.
The challenge is what happens after that information reaches us.
Getting information has become easier. Good communication should make processing it easier too.
That is the value of cognitive efficiency.
In a world with more information than ever, good communication should make information easier to understand, not harder.