The iceberg, applied to a person

Long answers about the parts of a life you cannot see from outside: the gap between how you read yourself and how others read you, what a value is that a goal is not, where the iceberg picture came from and what got flattened out of it — including an honest one about what a self-assessment can and cannot tell you. Written to be worth reading whether or not you ever install the app.

• What parts of a life are invisible

  The iceberg model is usually drawn for companies. Drawn for one person it has eight layers, and only one of them is the part anyone else can see. Here is what sits in each.

• Why the visible results are the smallest part

  When you compare yourself to someone, you are comparing your whole iceberg to their tip. The comparison is not unfair so much as structurally uninformative.

• How to self-assess without grading yourself

  An honest account of what rating your own life can and cannot tell you — written by the people who built an app that does it, including the parts of the format that do not hold up.

• Why other people see you differently

  The gap between how you read yourself and how you come across is not usually a misunderstanding to be corrected. It is what happens when one party has your intentions and the other party only has your behaviour.

• Values versus goals

  A goal is a state you can finish and tick off. A value is a direction you can act on today and never complete. Confusing the two is why a list of achievements can feel like nothing.

• Why journaling stalls but prompts survive

  The blank page is not a discipline problem. It asks you to make several decisions before you have written anything, and a fixed question set removes almost all of them — at a cost worth naming.

• Where the iceberg model came from

  Four different traditions independently reached for the same picture, and the version that ended up on a million slides is the one that lost the most information.

• Blind spots in self-knowledge

  Six failures of self-knowledge that keep turning up in the research, each with what the finding actually shows, where it has been contested, and the small number of things that genuinely help.

• Why "who am I" is harder than "what should I do"

  One question has a stopping rule, feedback and external verification. The other has none of the three, and changes its own answer while you work on it.

• Why being alone with your thoughts feels uncomfortable

  The famous study says people chose an electric shock over fifteen minutes alone in a room. It is a real result, it is smaller than its reputation, and the mechanism underneath it is fairly ordinary.