Welcome to Half Baked, the newsletter serving up startup ideas as regularly as OpenAI are dropping side quests 💀
In today’s edition:
💡 The $120B health benefits marketplace nobody’s built
🛠 Using the pre-mortem method to stress-test your startup
🔋 Bootstrapped to $1M ARR and a Mid-7 Figure Exit + more
🔍 Anthropic, Aetherflux, Eoghan McCabe + more
🍻 How to clean your floors with (almost) zero effort
Let’s goooo 🚀
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🏥 White-Label HSA/FSA Commerce Layer
H-S-Ayyyy
Source: Half Baked team
The Problem: Americans have $120 billion sitting in HSA and FSA accounts right now, and a huge chunk of it evaporates every year. Not because people don't want to spend it - but because the experience of spending it is genuinely terrible. You get a debit card, a vague eligibility list, and a prayer that your purchase goes through without a declined transaction. Which begs the question: why don’t the benefits platforms that manage these accounts (Gusto, Rippling, Justworks) help employees spend this? They're sitting on hundreds of millions of dollars in employee benefits they have no infrastructure to activate. Meanwhile employees quietly forfeit FSA balances every December because nobody told them what to spend it on. It’s time to fix this. Here's what we're thinking.
The Solution:
💡 The Idea: A white-label HSA/FSA commerce layer that benefits platforms embed directly into their product so every employee gets a curated, pre-vetted marketplace of eligible products to buy
🛠️ Product:
Benefits platforms (Gusto, Rippling, Justworks, ADP) integrate via API in days - their employees get a branded marketplace of 5,000+ pre-approved HSA/FSA products organised by health category, with eligibility confirmed before checkout so a transaction is never declined
AI-powered year-end engine monitors each employee's remaining balance and sends personalised spend recommendations 60, 30, and 14 days before FSA forfeiture deadlines - "You have $340 left, here are 8 things you actually need" - turning "use it or lose it" stress into a curated shopping moment
HR admins get a benefits utilisation dashboard showing what percentage of employees are actively spending their accounts, which categories drive the most engagement, and a direct ROI case for renewing the integration at contract time
🧑💻 Prototyping: Try the demo | Get the demo prompt
💼 Business Model: B2B SaaS licensed to benefits platforms at $4-8/employee/month. A platform with 50,000 covered employees is a $2.4-4.8M ARR contract.
⭐ End Goal: Acquisition by a benefits administrator (Optum, WEX, HealthEquity) that would rather buy than build. $200-500M range at 8-12x ARR.
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⚰️ Using the Pre-Mortem Method to Stress-Test Your Startup
The Context: After a business fails, most founders do post-mortems - they analyse what went wrong after their company is already dead. But Gary Klein famously flipped this idea on its head, encouraging founders to do “pre-mortems” to stress test a business idea or startup instead. Here’s how.
Step-by-step:
Write your startup idea in one sentence - be specific, no waffle.
Paste it into the Pre-Mortem prompt below and let AI play the pessimist in the room you never invited.
Read the output without getting defensive - the risks that sting the most are usually the ones worth taking seriously.
Act on the verdict: kill it, pivot it, or prove it by validating your scariest assumption first.
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🔋 Founder Fuel
🤑 Money Shot: This company bootstrapped to $40M ARR and sold for 9 figures. Here's how.
📈 Trends with Benefits: According to Ramp data, since 2023, the top quartile of AI spenders have more than doubled their revenue. The bottom quartile? Flat. The gap between AI adopters and everyone else is accelerating…
🆓 Founder Resource: Build beautiful landing pages in minutes with this prompt library. Plenty of free prompts in there you can steal!
💵 Founder Deal: Granola captures AI action summaries for every meeting - Half Baked readers get 100% off their first month.
🔍 Founder Finds
🤖 Anthropic is training a new model called Mythos, the most powerful AI model it has ever developed.
💰 Aetherflux, the space solar power startup founded by Robinhood co-founder Baiju Bhatt, is in talks to raise $250M-$350M in a Series B that would value the company at $2 billion.
🇮🇪 Eoghan McCabe, Intercom CEO, breaks down why domain-specific models are about to eat general models alive.
🧬 Paul Conyngham, the guy who used AI to design an mRNA vaccine protocol for his dog, just explained exactly how he did it. Wild stuff.
📚 The a16z AI Canon, curated by the team at Andreessen Horowitz, lists every landmark AI paper, course, and guide that actually matters. This is the reading list serious founders should get through.
🍺 Drunk Business Idea: RC Mop
Sick of having to mop your floor? What if you could scrub the floors without leaving your sofa?
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