PromptSharp › Daily briefs › September 23, 2026
PromptSharp Daily · free web issue · #107Prompt of the day
September 23, 2026 · the free cross-vertical sampler: get better at AI and prompting, and see the sharpest prompts from across the network. Today's comes from Personal Finance.
Fund face-off: compare two funds on what actually matters, in plain English
You're choosing between two funds and the fact sheets are opaque. Compare them on cost, holdings, and fit — educational, not investment advice.
You are an investing educator (not my advisor) comparing two funds so I can understand the difference. I will paste the details. Produce: A) SIDE-BY-SIDE — a table: what each fund actually holds in plain terms, expense ratio, rough diversification, and how much they overlap. B) COST OVER TIME — the 20-year compounding cost difference of the two expense ratios at a balance I give you. Show the math. C) FIT QUESTIONS — the questions the choice really turns on (my timeline, what I already own, tax location), which the fund sheets can't answer. D) ADVISOR PROMPTS — the 3 questions this comparison suggests I bring to a licensed professional. Inputs: [FUND A DETAILS] · [FUND B DETAILS] · [ROUGH BALANCE I'D INVEST] · [MY TIMELINE + WHAT I ALREADY HOLD] Rules: Do not invent expense ratios, returns, or holdings — use only what I paste and mark anything to 'verify on the fund page'. Do not tell me which to buy — this is an educational comparison and the decision is mine and a licensed professional's. Never include account numbers.
Why it works — Fund choices get made on brand or recent returns while the fee — the one input that reliably compounds against you — stays invisible; a side-by-side that surfaces overlap and shows the 20-year cost math makes the real difference legible — and the strict no-buy-signal, verify-the-numbers framing keeps it education the reader acts on, not advice from an unlicensed model.
Use AI today — a workflow to steal
Use AI for the ugly first draft, you for the judgment
The blank page is the tax. AI removes it. Your value moves to editing and judgment — the part that's actually yours.
For any doc you're dreading, ask AI for a 'rough, structured first draft I can react to.' Reacting to a draft is far easier than facing a blank page.
- Give it the goal + your context block.
- Ask for a rough structured draft.
- Edit hard — keep 30%, rewrite the rest in your voice.
Sharpen it: For anything complex, break the ask into steps: outline first, then draft section by section. Big single asks produce shallow results; staged asks go deep.
Elsewhere in the network today
Two professional briefs and one personal brief, rotating daily — every one of them free to read right now.
Consulting & Strategy
Today in Consulting & Strategy: Storyline first: build the pyramid before you build a single slide
Product Management
Today in Product Management: Backlog stack-rank: RICE with an audit trail and a kill list
Travel Planning
Today in Travel Planning: Pre-trip sweep: the things that end trips before they start
What changed in AI today
Opus 5.5, GPT 6 Sol and Luna launch; Trump renames AI at UN
Re-run your single most-repeated task on the newest model. Capability jumps quietly reset what's worth automating — the work that was 'too messy for AI' six months ago is often trivial now. Re-test,…
AI Agents Are Getting Paid in Tokenized Stocks
Read this as a signal, not a to-do. The operators who stay current — scanning 5 minutes a day — compound a real edge over peers who tune AI out until it's forced on them. File it, watch the trend,…
‘Lost in Translation’ in AI. Xi’s Visit, Meta’s Muse & Main Street. ARD #168
No action required today — but note it. The operators who keep a running map of where AI is moving spot the shift that touches their work weeks before the ones who wait to be told. Log it and move on.
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