Knowing What to Do Isn’t the Same as Being Able to Do It
Why capability, motivation, and knowing exactly what to do don’t always translate into action.
You know what you need to do. That’s what makes it so frustrating.
There’s a proposal that needs to be finished, a decision you need to make, a conversation you’ve been putting off, or some relatively ordinary task that has been sitting on your list for an unreasonable amount of time. You know why it matters and you probably know how to do it. You may have explained to yourself, repeatedly and with increasing irritation, exactly what needs to happen next.
And still, you’re not doing it.
For high-performing individuals, this can be particularly difficult to make sense of. You have plenty of evidence that you’re capable, you solve complicated problems, and you make difficult decisions. You manage responsibilities that other people find daunting. So when you struggle to do something that appears considerably easier, it seems reasonable to conclude that you should simply be able to make yourself do it.
That conclusion depends on an assumption we rarely question: if I know what to do, I should be able to do it.
But knowing and doing are not the same process.
There is something between intention and action
A lot of performance advice follows a simple sequence: decide what matters, make a plan, and execute it. When execution doesn’t happen, we tend to look for a problem with motivation, discipline, commitment, or character.
What that sequence leaves out is executive function.
Executive functions are cognitive processes that help us translate intentions into behavior. They include abilities such as planning and prioritization, task initiation, working memory, sustained attention, time management, organization, emotional regulation, cognitive flexibility, response inhibition, and self-monitoring.
Having an intention does not automatically give you access to everything required to carry it out.
You can know that a task matters and have difficulty starting it. Clear intentions does not guarantee you will not lose track of what you were doing. You can understand all the competing priorities and struggle to decide which deserves your attention first. You can even make a perfectly sensible plan in the morning and discover at four o’clock that you have spent most of the day responding to things you never intended to prioritize.
The plan existed.
The intention was real.
But, something happened between the two and the behavior that actually followed.
None of those situations tells us, by itself, that you didn’t care enough or try hard enough. It tells us there is a gap between the intention and the behavior worth understanding.
That is a much more useful place to begin.
“Why can’t I just do it?” doesn’t tell you very much
When capable people repeatedly struggle to do something they believe they should be able to do, the explanation tends to become personal very quickly.
I’m procrastinating again.
I need to be more disciplined.
Why am I so inconsistent?
I should be better at this by now.
These explanations collapse several different possibilities into one judgment about the person. They also don’t give you much useful information.
Imagine that you sit down to work on something important and nothing happens. “I need more discipline” gives you one solution: push harder. But perhaps the difficulty is that you haven’t decided what the first action actually is. Perhaps you keep losing track of the information you need. There may also be three competing priorities, and you are trying to hold all of them in mind while deciding what to do. Or, you start easily, but every interruption makes it difficult to find your way back.
Those aren’t the same problem, which means “try harder” is doing an impressive amount of diagnostic work for two words.
A more useful place to look is the friction between what you intend to do and what actually happens.
You don’t need to diagnose yourself every time you stare blankly at your laptop. You’re trying to get more specific about the problem.
If you can’t begin, that tells you something. If you begin but can’t stay with it, that tells you something different. If you keep switching to other things, notice that. If you repeatedly forget an intention once something else demands your attention, notice that too.
The goal is not to attach a label to every moment of difficulty. It is to stop treating every execution problem as though it has the same cause.
This is particularly relevant to ADHD, but it isn’t only about ADHD
For people with ADHD, the distinction between knowing and doing may be especially familiar because ADHD can affect executive functioning. You can understand exactly what needs to happen and still have inconsistent access to the processes needed to make it happen.
But executive-function difficulties are not exclusive to ADHD, and having ADHD does not mean every difficulty you experience is caused by it. Stress, sleep, physical health, trauma, workload, relationships, environment, major transitions, support, and nervous-system strain can all affect executive functioning.
So rather than automatically asking, Is this my ADHD?, it can be more useful to examine what is affecting your ability to carry out this particular intention in this particular situation.
That keeps ADHD in its proper place as relevant information rather than a total explanation. It also keeps you from turning every unanswered email, forgotten errand, or miserable Tuesday afternoon into supporting evidence for a single explanation.
Curiosity gives you more options than judgment
The point of understanding executive function isn’t to collect another sophisticated explanation for why you can’t get things done. It’s to become more accurate about what is happening so you can respond to the problem you actually have.
If you assume every execution problem is a discipline problem, you have very few options. Mostly, you can try harder, feel worse when trying harder doesn’t work, and then resolve to try harder more consistently. Humans have been running this particular experiment for quite some time.
If instead you become curious about where the friction occurs, the problem becomes more specific. And specific problems give you more useful things to examine: what you intended to do, what actually happened, where those two things diverged, and what the task required from you at that point.
You may not immediately know the answer. That’s fine. The shift is from judging the outcome to observing the process.
This matters particularly for high-performing people because capability can make self-judgment surprisingly convincing. When you have done many difficult things successfully, struggling with something that seems simple can feel like evidence that you are failing to use abilities you clearly possess.
But capability is not the same thing as consistent access.
You can be intelligent and struggle with working memory. You can be highly motivated and have difficulty initiating a task. You can be an excellent strategic thinker and struggle to prioritize when too many demands are competing at once. You can care deeply about something and still lose your attention to something else.
The contradiction becomes less mysterious once you stop asking whether you should be able to do it and start examining what happens between deciding and doing.
You probably already know a great deal about what you should be doing. High-performing founders and leaders are rarely suffering from a complete shortage of advice. There is always another book, system, planner, podcast, expert, or app waiting patiently to explain how calendars work.
More knowledge may not be the first thing you need.
Sometimes the more useful place to look is the space between what you know and what you do. If you understand where execution is getting stuck, you finally have something more useful to work with than “I should be able to do this.”
