HACK
A hack is the smallest change that produces the largest movement in a system.
It is not a shortcut and not a trick. It is the discipline of finding the single highest-leverage intervention and running it long enough that the result becomes undeniable.
The principle underneath it
Compounding.
A 1% improvement run for two years transforms a business. Ten minutes a day spent on the right thing, repeated for a decade, transforms a person. The changes that matter are almost never the grand gestures, which is inconvenient, because grand gestures are the ones that feel like progress.
Why the word
People ask why a financial methodology uses the word "hack." Because the alternative, the pivot-every-quarter, throw-it-against-the-wall approach, is what kills most businesses.
A hack is patient and repeated. It is the opposite of a stunt.
Common mistake
Changing several things at once.
If you move five variables, you learn nothing about any of them. You will know the result changed and have no idea which change produced it, which means you cannot repeat it. Hack means one lever, held long enough to read the result.
Also in the framework
HACK is one of the five framework disciplines. The framework page carries the expanded version with examples, anti-patterns, and lineage.
See framework page →