Your Home Purchase Could Sink You: Run a Pre-Mortem with AI First

You have been saving for years. The listing looks right, the neighborhood feels safe, and the monthly payment seems manageable on paper. Then a small voice asks: what if this is the decision that quietly wrecks my finances? Most buyers push that voice aside because they have no structured way to test it. A pre-mortem gives that worry a shape.

What a pre-mortem actually does

Instead of asking "will this work?", you assume the purchase has already gone badly wrong six months from now. Then you work backward to explain why. This flips your brain out of defending the decision and into hunting for causes. An AI assistant is useful here because it can generate many plausible failure stories quickly, including ones you would never think of on your own.

The assistant does not know your life. It predicts likely failure patterns based on the details you give it. The value is not the prediction itself, but the questions it forces you to answer. You stay in charge of judging which risks are real for you.

Test one: the polite request

Asking nicely for risks

I am thinking of buying a house. What are some risks I should consider?

This answer is not wrong, but it is useless. It lists generic categories anyone could name without thinking. It does not mention your down payment, your job, your commute, or the specific house. Nothing here helps you decide. The assistant stayed polite because you asked politely.

Forcing the failure

Assume it is six months from now and my home purchase has failed badly. I am financially stressed and regret buying. Write five specific reasons this happened, based only on these facts: I put 80% of my savings into the down payment, my job contract renews yearly, the house needs a new roof within two years, and my partner works in a different city three days a week. Do not soften the reasons. Do not reassure me.

This response is uncomfortable, which is the point. Each reason connects to a fact you provided. You can now ask: is my emergency fund really that thin? What happens if the contract ends? These are answerable questions, not vague fears.

Master template to copy

Fill in the brackets with your own details and paste this into any AI assistant.

Assume it is six months from now and my plan to [PURCHASE GOAL] has failed badly. I feel [EMOTIONAL STATE] and regret the decision. Write [NUMBER] specific reasons this happened, based only on these facts: [FACT 1], [FACT 2], [FACT 3], [FACT 4]. Do not soften the reasons. Do not reassure me. After the list, ask me one question for each reason that would help me check whether that risk is real in my situation.

Quick steering commands

• "You are being too gentle. Rewrite each reason as if you were a skeptical financial advisor who has seen this exact mistake before."
• "Remove any reason that does not connect directly to a fact I gave you. Replace it with one that does."
• "Now rank the reasons by how likely they are to actually happen to me, and explain your ranking in one sentence each."

How to know it worked

The exercise worked if you finish with at least one risk you had not considered and one concrete number you now want to verify, such as your true monthly buffer or the age of the roof. If every reason feels obvious, your prompt was too vague. Add more specific facts and run it again. For extra practice, open the free voice mode on your phone and speak your plan out loud to the assistant. Hearing yourself describe the purchase often surfaces doubts that typing hides.