Pre-Sell Before You Build: Avoid Costly Startup Mistakes — with David Hirschfeld

Most startups fail because they build something no one wants.

In this episode of Feel the Boot, I talk with David Hirschfeld, founder of Tekyz and creator of the Launch First method, about how to flip the script and pre-sell your product before you build it.

We explore how high-fidelity mockups, early customer conversations, and focused problem validation can help founders avoid wasting time, money, and effort on products that miss the mark.

If you’re an early-stage founder, this episode is packed with practical advice to help you test, sell, and refine your idea before writing a single line of code.

👉 What you’ll learn:

✅ Why most startup products fail

✅ How to pre-sell using mockups

✅ When to raise capital—and when NOT to

✅ The difference between building what you want vs. solving real problems

✅ Why narrowing your focus is critical in the early stages

🎯 Thinking about raising capital?

Take my free 5-question quiz to see if you’re fundable:

👉 https://ftb.bz/fundable

🔗 Connect with David Hirschfeld:

🌐 Website: https://tekyz.com/

🐦 Twitter/X: https://x.com/tekyzinc

💼 LinkedIn: https://www.linkedin.com/in/dhirschfeld/

📘 Facebook: https://www.facebook.com/dmhirschfeld

📸 Instagram: https://www.instagram.com/tekyzinc

📝 Want more from this episode?

📖 Read the full blog: https://ftb.bz/119B

🎞️ Watch the video: https://ftb.bz/119V

🎥 Related video: Watch my episode on pre-pivoting your startup: [Insert link here]

📍 Chapters

00:00 Intro — Most founders build too soon

02:09 Why solving the right problem matters

06:37 The Launch First method explained

10:27 High-fidelity mockups that look real

15:17 Validating with real customer conversations

18:07 Pre-selling before you write code

21:42 Founder mindset mistakes to avoid

27:12 Why you shouldn’t raise capital too early

31:07 Real-world examples from David’s work

34:57 Final advice for early-stage founders

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#startups #founderadvice #productvalidation #entrepreneurship #FeelTheBoot #presell #startupfunding #startupmistakes