{"id":8778,"date":"2026-04-19T12:01:10","date_gmt":"2026-04-19T10:01:10","guid":{"rendered":"https:\/\/bicon.li\/?p=8778"},"modified":"2026-06-11T14:52:30","modified_gmt":"2026-06-11T12:52:30","slug":"a-journey-for-the-curious-investor-now-built-into-the-prompt-builder","status":"publish","type":"post","link":"https:\/\/bicon.li\/en\/2026\/04\/19\/a-journey-for-the-curious-investor-now-built-into-the-prompt-builder\/","title":{"rendered":"Edutainment for Investors: A Journey for the Curious \u2013 Now Built into the Prompt Builder"},"content":{"rendered":"

Five minutes. Six chapters. One quietly radical idea: that private investors deserve to know why<\/em> a recommendation looks the way it does \u2013 not just receive it.<\/strong><\/p>\n\n\n\n

I've just shipped the biggest addition to the Portfolio Prompt Builder<\/a> since launch. <\/p>\n\n\n\n

A new interactive journey lives on the quick-start screen, one tap away from the moment you open the app. It's called A Journey for the Curious Investor<\/em>, and it's my answer to a question I heard again and again in beta feedback:<\/p>\n\n\n\n

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\"Okay, but why<\/em> do you keep telling me to buy a broad global ETF instead of the stocks I actually like?\"<\/p>\n<\/blockquote>\n\n\n\n

Fair question. Here's the answer, in scrollable form.<\/p>\n\n\n\n

What's in it<\/h3>\n\n\n\n

The journey unfolds as six short chapters. Each one takes a piece of textbook finance and turns it into something you can drag, toggle, or play with.<\/p>\n\n\n\n

1. Strategic Asset Allocation.<\/strong> Move the sliders between stocks, bonds, and cash. Watch the donut chart \u2013 and the expected return \u2013 respond in real time<\/a>. The takeaway from Brinson, Hood and Beebower is baked in: your asset mix explains around 90%<\/em> of the variability of your returns. Stock picking is the rounding error.<\/p>\n\n\n\n

2. Why ETFs, not individual stocks.<\/strong> A grid of 500 dots lights up to show what owning the whole market<\/em> actually looks like. Toggle 10 \/ 20 \/ 30 years of fees on the cost-erosion chart and see why a one-percent expense ratio is anything but a small number. Plus a quick look at inflation and home bias \u2013 two forces that quietly eat returns.<\/p>\n\n\n\n

3. The stock-picking trap.<\/strong> SPIVA data, distilled: over 20 years, roughly 90% of active US equity funds underperform their benchmark. Then I let you play. Pick ten stocks out of a universe of well-known tickers, and find out how your basket stacked up against the MSCI World. Most people are surprised. Some are humbled. One or two get lucky.<\/p>\n\n\n\n

4. Market timing is a trap, too.<\/strong> The \"missing the best days\" chart with 0 \/ 10 \/ 20 \/ 30-day toggles shows the cost of bailing out at the wrong moment. Three historical drawdowns \u2013 2000\u201302, 2008, 2020 \u2013 remind you what staying invested actually feels like<\/em>. Peter Lynch has the closing line: \"Far more money has been lost preparing for corrections than in the corrections themselves.\"<\/em><\/p>\n\n\n\n

5. Compounding, made tangible.<\/strong> Four sliders \u2013 starting amount, monthly contribution, time horizon, expected rate \u2013 feed a stacked area chart that cleanly separates what you<\/em> put in from what the market added. Export the result as a PNG or copy a plain-text summary. Stick it on the fridge.<\/p>\n\n\n\n

6. Your profile.<\/strong> A 30-second, three-question quiz (horizon, reaction to a \u221230% drawdown, need for income) sorts you into one of five profiles, from Capital Preservation to Aggressive Growth. One tap takes you back into the Prompt Builder with your answers pre-filled. No re-entering. No guesswork.<\/p>\n\n\n\n

Why I built it this way<\/h3>\n\n\n\n

Because private investors aren't stupid. They're under-served. The industry's instinct is to either over-explain in banking jargon or under-explain and hand over a PDF that reads like a regulatory filing. I wanted something in between \u2013 honest, evidence-led, and genuinely fun to scroll through.<\/p>\n\n\n\n

A few design notes for the curious:<\/p>\n\n\n\n