Hill Studied 500 Wealthy People. They All Shared One Odd Habit.

The decision chapter is the shortest route to a behaviour change in the entire book. Hill's finding is a pattern, not a theory: successful people decided fast and reversed rarely; unsuccessful people deliberated endlessly and then abandoned quickly under pressure.

Both halves matter. Fast decisions without commitment produce chaos. Slow decisions with commitment produce paralysis followed by regret. The combination — decide quickly, change slowly — is what compounds, because it maximises the time your effort spends pointed in one direction.

Hill's explanation for chronic indecision is social. People with weak decision-making are usually easily influenced by the opinions of others, which means they never own a decision long enough to test it. His remedy is deliberately unfashionable: keep your plans to yourself, tell the world what you've done rather than what you intend to do.

That advice is more defensible than it sounds. Announcing an intention delivers a hit of social reward that partially substitutes for achievement, and it invites a committee of casual opinions into a decision that should have one owner. Silence keeps the decision yours.

There's a decision-quality point hidden in the speed argument too. Most decisions are reversible, low-stakes, and made worse by delay — the cost of deciding late almost always exceeds the cost of deciding imperfectly. Reserve slow deliberation for the genuinely irreversible ones and move fast on everything else.

The practical test is simple. Look at the decision you've been carrying for more than two weeks. It is not getting better with age. Make it today, write down why, and give yourself a fixed date before you're allowed to revisit it.