How to reply when someone comments “Source?”
“Source?” asks you to back up a claim, usually with some skepticism. The best reply is honest about whether it's data or experience and adds one line of reasoning. Owning that it's an observation, not a study, builds more trust than bluffing.
The screenshot
What SnapCue read
A user is asking for a source for the claim that most startups fail due to distribution issues rather than product issues.
The user is skeptical of the claim and is challenging the original poster to provide evidence or data to back up their assertion.
Engage by providing context or common industry observations that support the claim, as it's a widely discussed topic in startup circles.
Replies you could send
Why these work
- Being clear about the evidence level is credible, especially on Reddit.
- One line of reasoning invites discussion instead of a citation war.
- A calm tone keeps the thread about the idea, not about you.
What to avoid
- Inventing a statistic or a study.
- “Google it”, which reads as “I don't have one”.
- Getting sarcastic about the emoji.
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The read and the replies above are SnapCue's actual output for this screenshot (run 2026-10-27), shown as returned.