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Better Questions

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AUTHOR: Mark Gardner on 7/12/2026

I used AI as an editorial assistant to help organize and refine my thoughts; the underlying ideas and personal experiences remain my own.

For years, I maintained what I thought was a pretty good retirement spreadsheet. Like many retirees, it tracked my investments, estimated Social Security, projected taxes and summarized spending. Every year I’d update the numbers, glance through a handful of reports and file it away until the next review.

The spreadsheet faithfully answered every question I asked.

The problem, I eventually realized, was that I wasn’t asking very good questions.

That changed when I began experimenting with Claude for Excel. I wasn’t looking for investment advice or another formula. Instead, I asked it to review my workbook the way an experienced retirement planner might. Which reports were actually useful? Which didn’t help me make better decisions? What information was missing?

The conversation quickly became less about Excel and more about retirement.

One discussion started with what seemed like a worthwhile project: calculating my personal inflation rate. I had years of categorized spending, so it sounded straightforward. But after walking through my data, I realized the calculation wasn’t telling me what I thought it was. My spending hadn’t simply increased. It had changed shape. Commuting disappeared. Travel expanded. Healthcare evolved. I wasn’t measuring inflation. I was measuring the transition from working life to retirement.

That realization sent me in a different direction. Instead of calculating another percentage, I redesigned the report to answer more useful questions. Was insurance quietly becoming my fastest-growing recurring expense? Were healthcare costs tracking my assumptions? Were higher travel expenses really a problem—or simply evidence that I was enjoying retirement? Which large expenditures were one-time events that deserved to be ignored rather than projected into the future?

I found myself making similar changes throughout the workbook. Reports that had once been little more than collections of numbers became decision-support tools. The formulas changed surprisingly little. The questions changed almost completely.

What surprised me most was that Claude rarely “solved” anything. More often, it challenged my assumptions. It asked why I had built a report a certain way or whether a particular metric would ever change a decision. More than once, it convinced me to discard a report I’d spent hours creating because it answered a question I no longer cared about.

Those conversations reminded me of something I’ve learned over the years working with good advisors. Their greatest value isn’t having better calculators. It’s knowing which questions matter.

Most of us already have years of spending records, investment summaries and retirement projections sitting in spreadsheets. We tend to think of them as places to store information. I now think of mine as a framework for thinking. The calculations haven’t changed much. My understanding has.

If you already keep a retirement spreadsheet, try a small experiment. Open Claude for Excel and ask it to review a single worksheet—not the formulas, but the usefulness of the report itself. Ask what an experienced retirement planner would want to see, what decisions the report actually supports and, most importantly, what questions you’re not asking.

You may discover, as I did, that the greatest value isn’t another calculation. It’s finding better questions to ask of the information you already have.

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greg_j_tomamichel
20 days ago

Thanks Mark for an interesting and thought provoking piece.

However my thoughts seem slightly different to most of the other comments. I wholeheartedly agree with the premise of asking better questions. But I tend to think that the best questions may well exist outside of spreadsheets or AI prompts.

Questions like:

  • How much should I sacrifice now in order for a more prosperous future? How do I get this balance right?
  • What is it I really want in life? Retire early? Work longer? Leave a large legacy when I pass? Donate to charities? Help family and friends now?
  • Deep down, what are my priorities?

To me, these seem to be some of the most important questions, and no spreadsheet or AI response is really going to give us the right response.

And I don’t have the right answers either. But I do tend to think that these questions warrant our careful consideration.

Jack Hannam
19 days ago

In answer to the first question, our goal was to be able to continue spending the same in retirement, with inflationary and hedonic adjustments. We lived below our means; that is, we chose a satisfactory lifestyle which allowed us to invest heavily.

The other questions you raised are very important, and tougher to answer. Definitely worth thinking about.

Jerry Pinkard
21 days ago

A wise person once told me that answers were easy, but questions are hard. Every time I had a bad outcome in my professional or personal like, I could point to questions that were never asked but should have been.

V Saraf
20 days ago
Reply to  Jerry Pinkard

They call it prompt engineering in ai, but Jerry I like your mention of what the wise person said.

John Katz
21 days ago

Mark, I have been using Chat and Gemini extensively to help with my personal finance issues. Like you, I don’t use them to make decisions for me, but I do use them to provide me with information/insights/perspectives that helps me make decisions.

Today is as incompetent as Claude, Chat, Gemini, etc., will ever be– and it’s hardly incompetent. it will only get better each day. I’m persuaded that at least 50% of routine financial planning work done today by professionals today will disappear within five years.

I do somewhat disagree with you on your conclusion: You say that Claude rarely ‘solved’ anything. You then go on to say that the greatest value of advisors is knowing which questions matter.

Yet what Claude is doing for you and what advisors do for you are essential to you ‘solving’ whatever problem you’re trying to solve. You ultimately solve issues by deciding what action to take given inputs from Claude, your advisor, your experiences, or from a dozen other sources. Claude sounds like it is becoming an essential partner in your financial world.

Your experience mirrors mine: Knowing what questions to pose to Claude and advisors – and for Claude and advisors to ask of you – rapidly gets you to a range of solutions to consider.

It’s the speed, accessibility (24/7, 365 days/year), cost, objectivity, and rapidly improving quality of answers from Claude and other Large Language Models that should have the attention of financial advisors everywhere.

Mark Crothers
21 days ago

Mark, in the run-up to retiring, I didn’t just look at my retirement spreadsheets every day—I practically lived in them. I was opening them multiple times a day, obsessively tweaking variables and micro-managing scenario tabs like a man possessed.

Yet, since finally stepping away in March 2025, I can count on one hand the number of times I’ve actually launched Excel. Once I finally crossed the finish line, the urge to stress-test my life every twenty minutes completely evaporated.

These days, Claudia AI has basically replaced Google as my go-to query engine for whatever random topic pops into my head. In fact, I occasionally suffer a wave of modern guilt, wondering just how much grid energy I’m burning through just to get an instant, deeply detailed answer to some of the most beautifully inane questions imaginable.

DavidHLancaster
21 days ago
Reply to  Mark Crothers

Mark,
to address your first paragraph: I kept a close eye on the increase in our portfolio as were heading towards retirement as well, but not nearly as consumed with it as you were.
To address your second paragraph I am in similar vein, but when it comes to spending.
I was quite “thrifty” spending money as we were saving for retirement. But since we retired I am not as thrifty as I know where we stand financially, whereas that piece of data was unknown as I was saving for retirement. Also that was the entire point of being thrifty while working, was to have sufficient funds to enjoy retirement. My spending has also been bolstered by having been retired for 7 1/2 years, funding expenses only with our portfolio, without having the portfolio level change significantly. We have been blessed with a superior market. My only restriction I spending at this point is trying to avoid exceeding income beyond the 12% tax bracket. Having 22 cents of any dollar after that paid in income tax is something I can’t stomach at this point. Plus after years of being frugal I don’t think we know how to spend beyond that level, it’s just not in our genetic makeup.

Last edited 21 days ago by DavidHLancaster
Dan Smith
21 days ago
Reply to  Mark Crothers

The amount of water wasted on pretty green lawns and landscaping is bad enough, now we have to think about thirsty and power hungry AI. I’m guilty as  well; did I really need to ask AI if a split king bed was the same as two extra long twin beds?

V Saraf
21 days ago

Mark, thanks for the post! I have not worked with Claude for Excel so far, but use spreadsheets all the time. Used to use macros, but now my needs are fewer and straightforward, and I don’t build reports either. My needs are simple.

It is typical for me to have my earphones on and Claude or Grok on my phone as I walk or bike and have a fairly productive conversation on medical topics. I can drill down as much as I want. As you indicate AI will open up a related topic (rather than a suggestion) that I had not thought of, and I can pursue the conversation in that direction. It is a great learning and research tool.

baldscreen
21 days ago

Spouse started keeping a spreadsheet after retirement. I had never done this, I did more of a guardrail type budget and sinking funds. So I have no idea if the spreadsheet is good or not? I certainly have no idea what the information tells us. I am going to suggest to spouse to play with AI and the spreadsheet to see if it can tell us anything useful. Thanks for the suggestion, Mark. Chris

Dan Smith
21 days ago

Mark, all this talk of spreadsheets is going to blow RDQ’s brain apart! 
Seriously, knowing the right questions to ask is important in all aspects of life. Being honest with yourself when answering the questions is important as well. Sounds like AI provided good direction for you.
I often use AI when researching a topic. It’s a bit unnerving when AI engages me in a conversation, as if I were talking to a real person. AI even makes references to my HumbleDollar posts, (at least someone is reading them). 
Thanks for a thought provoking post. 

R Quinn
21 days ago
Reply to  Dan Smith

Who needs spreadsheets when you can compose a complex question with variables and ask AI for the answer. I send the same question to different systems to see if I get the same answer.

Sometimes I don’t, but they provide the caveats so I can see why and they show the basis for the calculation. I have found a few factual errors though and sometimes the data comes from years that are not as current as you may want so you have to update it.

Actually I frequently engage with AI while driving via CarPlay. When something pops in my head

. “Hey siri, how much do I need to save to have a million dollars by age 60?”

” Do you want me to use ChatGPT?”

”Yes”

And my car tells me the answer.

By the time I got the answer with a spreadsheet I would have been 60.

Last edited 21 days ago by R Quinn
DavidHLancaster
21 days ago
Reply to  R Quinn

BEWARE: I have read that you should be very careful of any calculations performed by AI. They are large language models and scour words to give you answers, they are not calculators.

R Quinn
19 days ago

I don’t know but when I used them, they didn’t just give the answer but showed each step of the calculation and also what different assumptions I could use.

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