Show HN: I Made YC Rejection Simulator
yc-sim.vercel.app
yc-sim.vercel.app
Idea: Startup incubator incubator. Our customers would be people like Paul Graham before he started YC. We would've helped him start YC.
Your idea is the startup equivalent of navel fluff: a thing that exists but has zero intrinsic value. YC already solves the problem you’re vaguely describing. Paul Graham didn’t need another layer of abstraction to "help" him build YC—he needed execution, not incubation.
Market Problem: Who’s your customer here? Founders don’t want a "meta-incubator"; they want results (growth, funding, mentorship). Would Sam Altman have used your service before YC? Hell no—he’d have been busy fixing startup failures, not theorizing about them.
Execution Flaw: You’re proposing a middleman in a world that rewards cutting out middlemen. YC’s success is built on giving direct access to mentors and capital—your service would do the opposite. How do you plan to add value above YC’s existing network? Magic and good intentions?
Team Flaw: Startups hate "helping founders" as a business model. We’d need proof you’ve built something successful before teaching others. Your pitch reeks of "we want to help help people help people." If you can’t name three specific, actionable services (not "mentorship" or "networking") you’d provide that YC doesn’t already do better, reject yourself now.
Fix (If Possible):
Stop chasing meta-ness. Found something real people pay for now.
Pick a single niche YC can’t/won’t serve (e.g., pre-product-market-fit NFT startups? Ethical AI accelerators?). Stop trying to "solve" incubation itself.
Demonstrate you’ve built something, not just dreamt of platforms.
Reapply when you have $1M in revenue from a real product—not a "better way to make startup ideas." Idea: Startup incubator incubator incubator. Our customers would be people like the ones who try to make incubator incubators for whom Paul Graham would've been a customer before he started YC. We would've helped them help him start YC.
Circular Market Assumption: You claim your customers are people trying to "help Paul Graham before YC existed," but Paul Graham didn’t need a "better incubator incubator"—he needed to ignore existing VC-funded incubators and invent something simpler. Your idea assumes there’s demand for a layer of indirection in a space already glutted with poorly conceived startup programs. You haven’t even demonstrated that your hypothetical users exist. (Hallucination score: 85% — your answer feels made-up because the problem is).
Execution suicide by abstraction: To build this, you’d have to (a) solve a problem YC itself didn’t need; (b) teach would-be incubators to avoid 99% of the mistakes that killed past incubators (e.g., charging too much, ignoring founder pain points); and (c) create a business model that scales for a niche subset of people who believe startup founders need curators of curators. Good luck getting founders or LPs to pay for this. Your idea is to YC what a consultant is to a lean startup: an unnecessary middleman.
Execution risk: 90% of your target audience (people trying to build incubators) are delusional first-time entrepreneurs who’ll fail for reasons you won’t fix. You’re addressing the 10% who might “get it,” but even that is statistically noise. YC’s biggest lesson: most “founders who build things founders need” end up building things nobody needs until they dig into real pain points. You haven’t listed one concrete problem your "incubator incubator" solves, beyond vague hand-waving about "helping Paul Graham (RIP, by the way)."
Solution: Stop. Build a real startup that solves a direct pain point. If you truly believe in this, talk to 100 people who’ve run failed/weak incubators. Find the specific failing they all have in common (e.g., “they can’t close mentorships,” “their demo days suck”) and address that. Until then, your idea is a philosophy assignment, not a business.
Hallucination score: 82%
Accuracy: 90% (YC partners obsess over first-order problems, reject meta-ideas without extreme evidence, and hate repetition as a substitute for clarity). You’re not the exception.
—Yours in brutal honesty,
Paul Graham’s Ghostwhen refining a pitch, it takes a lot of, well, pitching to discover what's wrong with your message, or where it's falling flat.
the more you can simulate this pushback from different angles, the better your pitch will be when you eventually present it.
Solid businesses with a real chance at an upside don't need much convincing or fielding criticism. If you have a profitable company that needs to scale to do more business, just walk into a bank... If it's a pie-in-the-sky app idea that could maybe be monetized after market capture, then I don't think anyone needs imagined negative feedback at that point.
It's good satire, though.
Sure, if you're an established profitable business seeking straightforward financing, you might not need this. But most YC applicants are early-stage founders trying to articulate vision, potential, and execution capability. This tool might be able to refine that message.
Also:
> If you have a profitable company that needs to scale to do more business, just walk into a bank.
Where they'll ask you to put up all your personal assets as collateral in exchange for a 20% loan on your existing accounts receivable
I'd say people are better off going with fundamentals. Because if your fundamentals are bad, but let's say you manage to enthral the investors with your confidence, charisma, and selective optimism, they may fund you, but your negotiating position will be incredibly weak. If they stagger the funding over milestones, upsetting your investors for any matter - product related or not - will mean game over. If they want a lot of equity, you will have to say yes, as they'll still be the one investor tentatively interested, etc. It's a bad deal. It's risking a lot of structural damage to a new business.
With good fundamentals, all of that doesn't apply. If you start a company, get some cash flow going, and show profit, investors will start chasing you. Whatever funding you would have gotten through the usual Silicon Valley venture pitching, you will now get on actually good terms.
> they'll ask you to put up all your personal assets as collateral in exchange for a 20% loan on your existing accounts receivable
Has this happened to you? My experience is that banks offer almost up to 1:1 debt to (company) assets, so long as the business model is clear and profitable. If someone's trying to fund an unprofitable business (like I said, for market capture, for example), then there will be problems. But in that case, the fundamentals aren't great.
But for the record, YC is actually a lot more polite in their rejection letters (don't ask).
dog walking marketplace -> act 1 - you start in SF, where people love dogs as much as kids (and think that's ok), after some cold start issues you get to 100k WAU WAU
act 2 - people don't just use your app to coordinate about dogs, they also start renting each others stuff and use your payment features for convenience
act 3 - expanding in major US cities was harder than anticipated, but investors love the idea (networks effects baby) and so you can buy a super bowl ad and reach 100M dog owners and walkers in one afternoon. You're engineers did a good job and you can sign everybody up with not issues...
Provide a harsh and direct rejection explaining why this idea won't work (unless for the real good idea), pointing out potential flaws, market issues, team problems, or execution challenges. Be specific and refer to details from their application. Your tone should be direct, blunt, and slightly condescending (or like Paul Graham that obsessed, counterintuitive, and logical) but provide real constructive criticism with solutions. Keep your response under 300 words.