The law of least effort, and how to use it on yourself

For about a decade I described myself as “not a morning person.” I said it the way you’d state your blood type — a fact about me, fixed, not up for negotiation. I said the same about being “bad with money in my twenties” and “someone who just can’t sit still and read a long book.”

It took me an embarrassingly long time to notice what those sentences actually were. They weren’t descriptions of who I am. They were descriptions of which path was cheaper in the moment, dressed up as identity. The alarm went off; the snooze button was six inches closer than my running shoes; I picked the cheaper option a thousand mornings in a row; and then I told myself a story about it. I’m not a morning person.

That’s the trick the mind plays on all of us. We keep choosing the option that costs less — less effort, less friction, less discomfort right now — and then we promote the result to the status of character.

The law nobody told you was running your life

Water runs downhill. It isn’t lazy or virtuous; it just takes the path of least resistance, every single time, with perfect reliability. We are more like water than we’d like to admit.

In the moment of choice, you don’t weigh the gym against the couch on their long-term merits. You weigh them on cost right now. The couch delivers comfort in zero seconds at zero effort. The gym asks for shoes, a commute, sweat, and a payoff that won’t show up for weeks. So the couch wins. Not because you’re weak. Because you’re a rational creature obeying a law as old as gravity.

You don’t choose the good thing or the bad thing. You choose the cheaper one — then you call the result who you are.

Once you see this, “try harder” stops sounding like advice and starts sounding like a curse. Telling someone to use more willpower is telling them to push uphill against their own design, forever. They can manage it for a stretch. Nobody manages it for life. The day they’re tired, stressed, or distracted — which is most days — the cheap option wins, because it was always going to.

So the real question is not how do I want it more? It’s the question I keep coming back to in everything I write:

How do I make the good behaviour the cheaper one?

The arc from effort to effortless

This is the framework I actually live by, and it’s the spine of everything on this site. I think of discipline as a four-step arc — and the whole point of the arc is to walk yourself out of needing it. I call the steps Discomfort, Focus, Resilience, Mastery. They’re not four separate tricks; they’re one road from effort to effortless, and you can only travel it in order.

It starts where every real change starts, in a place nobody volunteers for.

Discomfort — step into the hard new thing

The good behaviour is more expensive than the bad one. That’s not a bug to be argued away; it’s the entry fee. Growth lives just outside the comfort zone, and the toll at the gate is paid in discomfort. The mistake most of us make is treating that early friction as a sign we’ve chosen wrong. We haven’t. The cold first run, the awkward first conversation about money, the first long book that won’t go down easy — that resistance is simply what new feels like before it feels like yours. You don’t dodge this step. You decide to walk through it on purpose.

Focus — aim your limited energy at the few things that matter

Here’s the thing nobody tells you about willpower: you get a small, fixed budget of it each day, and you burn it whether you spend it well or not. So the move is not to summon more — it’s to spend less, on fewer things. Pick the one or two behaviours that actually move your life and pour your scarce energy there. Everything else, you make automatic or you let go. Lay the gym clothes out the night before. Delete the app off the home screen. Leave the phone charging in another room overnight. You’re not adding motivation; you’re cutting the number of decisions willpower has to fund, so that the little you have is aimed at what counts. What’s effortless to do is just as effortless to neglect — which is exactly why the few things that matter need protecting from the noise.

Resilience — stay through the messy valley

Now the honest part, because I’d be selling you magic otherwise.

For a while, the good behaviour is still the harder one. There’s a dip — a stretch where you’re paying the full cost and the reward hasn’t shown up yet, where it’s all effort and no payoff. James Clear calls it the valley of disappointment, and it’s real. This is the only place willpower truly belongs: not as a way of life, but as a bridge across that valley. Most people quit here, because the maths of the moment looks like a loss — and on a single day, it is. Resilience is the decision to keep showing up while the books don’t balance, on the faith that the slope is about to change. It’s commitment doing the work that interest can’t, because interest is fleeting and commitment is what carries you on the low-motivation days.

Mastery — until it stops costing willpower

Then something quiet happens. The repetitions add up, the friction drains out of the behaviour, and one day you do the thing without negotiating with yourself first. You don’t decide to go for the run; you just go, the way you brush your teeth. The cost has dropped to near zero, and the behaviour has crossed over from something you do into something you are. This is mastery — not superhuman discipline, but the opposite: a behaviour so worn-in it no longer draws on the willpower budget at all. And here’s the part nobody mentions — once you reach it, you put the willpower down. The bridge is gone because you don’t need it anymore.

That’s the whole arc. The goal of discipline is to make itself unnecessary: you push only until the behaviour becomes the easy default, and then you stop pushing.

Re-grading the slope

If behaviour follows the path of least effort, then your job was never to become a tougher person. It was to re-route the river — to make the good behaviour the downhill one. Three levers I lean on inside the Focus step, because they’re really just ways of cutting the cost:

1. Cut the steps to the good thing. Every step between you and the right behaviour is a tax you pay in willpower. Lay the gym clothes out the night before. Pre-chop the vegetables on Sunday. Put the book on your pillow so you have to move it to get into bed. You’re not adding motivation — you’re removing friction until the right thing is nearly automatic.
2. Add steps to the bad thing. Log out. Delete the app off the home screen. Don’t keep the biscuits in the house. You don’t need the willpower to resist the cookie if buying the cookie now costs a twenty-minute walk in the heat.
3. Pull the reward closer. The gym’s payoff is months away; that’s exactly what makes it lose. So borrow a hit from the present — a streak you can see, a friend who notices, a small win you celebrate out loud the same day. Move the dopamine nearer to the moment of effort, and the maths of the choice changes.

None of this is about wanting it more. It’s design. And design problems, unlike character problems, actually have solutions. I write more about this — and the eight spheres it runs through — in the book, and the trackers and tools I use to do it live in the resources. (And if you want to know why a guy who burned down his family’s bamboo house as a kid ended up obsessed with this, that’s over here.)

So no, you’re not lazy, and you’re not “just not a morning person.” You’re water. You’ll always run downhill. The only real move is to stop fighting your nature and start re-grading the slope — until the good path is the one that runs down.