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Why it worked

The mechanics

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Analysis by ViralLoop — not written by the original author.

Justin Kan on Product · ViralLoop

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Post by Justin Kan on X

Justin Kan@justinkan

When thinking about new products, you should assume some people are like you, but not every one is. Assuming some people are like you = it’s worth building your product Assuming not everyone is = you will talk to your customers to figure out what else it needs

403 likes7 repliesPosted May 11, 2020

View the original on X Written by Justin Kan. Captured Sep 4, 2026.

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29

Viral score

Based on absolute engagement — the platform doesn’t expose follower counts here, so large accounts score higher.

From likes, comments.

Why it worked

Short enough to read in full without expanding, which removes a step before the point lands.
Opens on a negative, which reads as a warning and is harder to ignore than a claim.

The mechanics

Hook: Plain observation
Structure: Hook → Landing
Style: Conversational paragraphs at a steady pace.
Tone: plain, matter-of-fact
Written for: Product teams

Analysis by ViralLoop — not written by the original author.

Topics

Product Revenue

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More from Justin Kan

This is one of the most important lessons I’ve ever learned. I’ve learned from CEOs. But I’ve also learned so much more from former heroin addicts, construction workers, and hippies. Stay open to other people instead of closed and the world is so much richer.

10 months ago we shut down Atrium after raising $75m in venture capital. Anyone hearing that knows I made tons of mistakes along the way. Someone asked me today what my biggest lessons learned were. Here they are:

A friend who just started a company texted me last night and asked: "What's the best piece of advice you have for me? What do you wish someone told you when you were running these companies?" Here's what I answered