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Pitching & Investors

Handling the Hardest VC Questions: Market Size, Moats, and CAC

VC partners often interrupt pitches early. How to answer aggressive questions on defensibility, TAM, and unit economics with crisp conviction.

Vishal Verma
Vishal VermaCTO & Co-Founder, Dehurdle
August 19, 20261 min read

The Friction

Venture investors test your conviction by interrupting your narrative with blunt skepticism. Getting defensive or making up numbers on the fly kills partner trust immediately.

The 'Moat & Defensibility' Answer

When a VC asks 'Why won't a frontier AI lab or an incumbent clone this?'

Recommended script
"Frontier AI labs build general-purpose models for everyone. They won't build [the specific workflow] for [your buyer]. [Incumbent] is built around [their current product model], so matching us would mean rebuilding their core product. Our moat is [domain depth], [proprietary data], and [how deeply we sit in the customer's workflow]."

3 Rules for Investor Q&A

01
Lead with the Direct Number: If asked about CAC, give the exact dollar figure first, then explain the cohort trend.
02
Admit Gaps with a Testing Plan: If you don't have the data, say: "We haven't tested enterprise outbound yet; our first [number] customers all came from inbound."
03
Keep Answers Under 45 Seconds: Long answers invite aggressive counter-interruptions.

The 2-Minute Practice Drill

2-Minute Spoken Practice

The 2-Minute Practice Drill

Practice your pitch Q&A in a Dehurdle simulation.

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