This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Signal Fifteen
YC, a16z, 20VC podcasts turned into weekly startup ideas
Problem: AI made it too easy to build the wrong thing. Solution: Signal Fifteen turns YC, a16z, 20VC, and top founder podcasts into evidence-backed startup ideas founders can save, explore, pressure-test, and start building in one click.
Hey Product Hunt 👋 I’m Alex, founder of Signal Fifteen.
1. So, why did I build this?
I’ve been in that weird founder mode where you’re constantly asking:
“What should I build next?” “Is this market real?” “Am I early, or just imagining the signal?” “Is there actually a startup here?”
Like a lot of founders, I kept listening to AI, venture, and founder podcasts to build conviction.
But the best moments were never the obvious “takeaways.”
They were small signals buried inside long conversations:
- a founder casually describing a broken workflow - an investor explaining why a market is changing - an operator mentioning a bottleneck that keeps repeating - a CEO saying something that sounds like “someone should build this”
I kept thinking:
“There’s probably a startup hidden in that.”
But normal podcast summaries didn’t help. They told me what people talked about. They didn’t turn the conversation into something a founder could actually explore, pressure-test, or build from.
So I built Signal Fifteen.
2. What does it do?
Signal Fifteen scans trusted AI, venture, and founder podcasts - including YC, a16z, 20VC, and more - and extracts evidence-backed startup opportunities from each episode.
Each idea includes:
- what changed - why now - who has the pain - first ICP - first wedge to test - risks - supporting transcript evidence
It also tracks when signals repeat across episodes, so you can see what is just a one-off spark vs. what keeps showing up.
The goal is not to give founders more content.
The goal is to help founders find what’s worth building before it becomes obvious.
3. What was the hardest part?
The hardest part was filtering.
It’s easy to generate “startup ideas.”
It’s much harder to avoid fake ideas, generic AI wrappers, consulting disguised as software, tiny tools, or ideas that sound smart but have no real wedge.
So Signal Fifteen is built around curation:
- Is this specific? - Is there evidence in the transcript? - Is it buildable? - Is there a real first wedge? - Could it become venture-scale? - What is directly supported vs. inferred? - Has this signal shown up before?
A lot of ideas get rejected before they ever show up.
4. What can you do today?
Today, you can browse curated opportunities, see which signals are new or repeated, save favorites, and go deeper on any idea with one click.
Open any idea in GPT or Claude, or copy the full-context prompt into your own workflow to explore, pressure-test, or start building an MVP.
Each prompt carries the idea context with it: why now, first wedge, ICP, risks, validation questions, pricing, moat, competitors to research, and what to test first.
The goal is not just to collect startup ideas.
It’s to turn each signal into a founder exploration loop - from evidence-backed idea to first test or first build.
Before you leave, pick one:
- The idea you’d spend one weekend testing. - The idea whose evidence still doesn’t earn your belief. - The podcast episode Signal Fifteen should analyze next.
No comment highlights available yet. Please check back later!
About Signal Fifteen on Product Hunt
“YC, a16z, 20VC podcasts turned into weekly startup ideas”
Signal Fifteen was submitted on Product Hunt and earned 10 upvotes and 3 comments, placing #49 on the daily leaderboard. Problem: AI made it too easy to build the wrong thing. Solution: Signal Fifteen turns YC, a16z, 20VC, and top founder podcasts into evidence-backed startup ideas founders can save, explore, pressure-test, and start building in one click.
Signal Fifteen was featured in Artificial Intelligence (475.9k followers), Startup Lessons (7.8k followers) and Community (3.1k followers) on Product Hunt. Together, these topics include over 119.2k products, making this a competitive space to launch in.
Who hunted Signal Fifteen?
Signal Fifteen was hunted by Alex Yaroshewski. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Signal Fifteen stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Alex Yaroshewski
Hey Product Hunt 👋 I’m Alex, founder of Signal Fifteen.
1. So, why did I build this?
I’ve been in that weird founder mode where you’re constantly asking:
“What should I build next?”
“Is this market real?”
“Am I early, or just imagining the signal?”
“Is there actually a startup here?”
Like a lot of founders, I kept listening to AI, venture, and founder podcasts to build conviction.
But the best moments were never the obvious “takeaways.”
They were small signals buried inside long conversations:
- a founder casually describing a broken workflow
- an investor explaining why a market is changing
- an operator mentioning a bottleneck that keeps repeating
- a CEO saying something that sounds like “someone should build this”
I kept thinking:
“There’s probably a startup hidden in that.”
But normal podcast summaries didn’t help. They told me what people talked about. They didn’t turn the conversation into something a founder could actually explore, pressure-test, or build from.
So I built Signal Fifteen.
2. What does it do?
Signal Fifteen scans trusted AI, venture, and founder podcasts - including YC, a16z, 20VC, and more - and extracts evidence-backed startup opportunities from each episode.
Each idea includes:
- what changed
- why now
- who has the pain
- first ICP
- first wedge to test
- risks
- supporting transcript evidence
It also tracks when signals repeat across episodes, so you can see what is just a one-off spark vs. what keeps showing up.
The goal is not to give founders more content.
The goal is to help founders find what’s worth building before it becomes obvious.
3. What was the hardest part?
The hardest part was filtering.
It’s easy to generate “startup ideas.”
It’s much harder to avoid fake ideas, generic AI wrappers, consulting disguised as software, tiny tools, or ideas that sound smart but have no real wedge.
So Signal Fifteen is built around curation:
- Is this specific?
- Is there evidence in the transcript?
- Is it buildable?
- Is there a real first wedge?
- Could it become venture-scale?
- What is directly supported vs. inferred?
- Has this signal shown up before?
A lot of ideas get rejected before they ever show up.
4. What can you do today?
Today, you can browse curated opportunities, see which signals are new or repeated, save favorites, and go deeper on any idea with one click.
Open any idea in GPT or Claude, or copy the full-context prompt into your own workflow to explore, pressure-test, or start building an MVP.
Each prompt carries the idea context with it: why now, first wedge, ICP, risks, validation questions, pricing, moat, competitors to research, and what to test first.
The goal is not just to collect startup ideas.
It’s to turn each signal into a founder exploration loop - from evidence-backed idea to first test or first build.
Before you leave, pick one:
- The idea you’d spend one weekend testing.
- The idea whose evidence still doesn’t earn your belief.
- The podcast episode Signal Fifteen should analyze next.