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Rethink for think

Koestler is an AI planning partner that developers, IT planners and PMs use before they decide. Widen the plan with the Creative lens, test it with the Theory lens — the conversation builds into a document you can edit.

I argue against your decision — before reality does.

Put a cache in front of the dashboard

The dashboard's first screen takes six seconds. I want to put a cache in front of it this sprint.

Theory

A cache makes a slow thing slow less often — it doesn't make it fast. The answer depends on what is actually slow.

Key question

When the dashboard loads, what is actually slow?

→ goes into 'Decision'

Pick an option in the question above

One session, two lenses. Switch lenses any time during a session, right below the input.

FIG 1

Creative

Crosses a stuck problem with a distant field to find a new angle. Every idea it brings back is marked unverified.

FIG 2

Theory

Tests the idea against how things work and the evidence. Whether it backs the idea or challenges it, it writes down how to fix it.

Finding the weakest link, assuming it failed and arguing the other side all happen inside Theory.

FIG 3

One document

What both lenses produce builds into one planning document, and the parts this turn changed are marked.

Before you start

Will it bury me in questions?

It answers first. It asks only when it has to, as choices that are quick to pick.

How far can I trust it?

Every idea from the Creative lens carries an 'unverified' mark. Calls from the Theory lens come with their grounds.

Is anything left when the conversation ends?

The session builds into a planning document. You can edit it yourself and download it as a Markdown file.

The name comes from Arthur Koestler, who held that new ideas appear where two frames of thought that rarely meet collide. The Creative lens follows that idea and crosses your problem with a distant field.

Start with the plan you're holding right now.