How do founders and VCs say you should build a startup from zero?

To build a startup from zero, founders and VCs emphasize a shift away from "building in a hole" toward a process of continuous validation, solving "narrow wedge" problems, and prioritizing distribution as much as the product itself.

1. Identify a "Burning" Problem

The consensus among experts like Uri Levine (Waze co-founder) and Y Combinator is to "fall in love with the problem, not the solution" Lenny’s Podcast — A founder’s guide to crisis management @ 1:04:18. To find these problems:
* Look for Spreadsheets: Greg Isenberg suggests that any industry where people are still using spreadsheets is a prime startup opportunity Greg Isenberg — SaaS apps that will print profits @ 00:00.
* Mine Online Communities: Isenberg also recommends "teleporting" into Facebook groups or subreddits to see what underserved niches are complaining about Greg Isenberg — How Nick Huber Built His Wealth @ 15:16.
* Founder-Market Fit: Starter Story suggests looking at your own skills first to find a problem you are uniquely qualified to solve Starter Story — I Make $1M/Month From Bed @ 03:02.

2. Validate Before Building

Multiple creators warn against writing code before proving people will pay.
* The "Kickstarter" Model: Brett Malinowski advises creating a clickable Figma prototype and a landing page with a Loom video. He highlights founders who have made $75,000 in pre-orders before even starting development Brett Malinowski — Digital Dropshipping @ 06:08.
* Monetary Validation: Starter Story emphasizes that the only real validation is collecting money. "A vitamin is a nice to have. A painkiller is something you have to have" Starter Story — How I Built It: $30K/month Micro-SaaS @ 06:04.
* Iterative Testing: Alex Lieberman suggests a "step-by-step" approach: start with a tweet, then a newsletter, then a video, and only build a business if there is consistent interest Starter Story — The Multipreneur: $10M Portfolio @ 15:20.

3. Build a "Quick and Dirty" MVP

When you do start building, Y Combinator advises against over-engineering.
* Find the 10%: Most code written in the early days will be thrown away. Your goal is to find the 10% that provides actual value Y Combinator — How To Start A Dev Tools Company @ 06:06.
* The Narrow Wedge: Avoid building a broad platform. Instead, build a "narrow wedge" that solves one specific problem in 48 hours and try to sell it to 10 similar customers Y Combinator — The Sales Playbook For Founders @ 03:02.
* No-Code and AI: Brett Malinowski recommends using no-code tools like Bubble and Make.com to combine existing APIs into a unique solution Brett Malinowski — Start A SaaS in 5 Simple Steps @ 03:02.

4. Distribution and Teams

• Marketing is Essential: Founders often fail because they focus on engineering and ignore sales. Starter Story notes that marketing is "90% of being successful" Starter Story — How I Built It: $40K/Month iPhone App @ 03:02.
• Co-founders: Y Combinator suggests that 90% of the time, it's best to find a co-founder before starting, as the emotional support and complementary skills are crucial Y Combinator — How To Find A Co-Founder @ 01:43.
• Where they disagree: While YC generally favors co-founding teams, Greg Isenberg and Starter Story frequently showcase "solopreneurs" and "multipreneurs" who leverage AI and lean teams to build multi-million dollar portfolios alone Greg Isenberg — The Multipreneur: $10M/Year @ 00:00.

— Sources: 17 videos across 5 creators