The science behind echoprism — the 'Cool-Off' message Composer

Composed Messaging

You type your email or message and paint effects render in the background. Then you take time to reflect on the art you've created and maybe the message before you send it.

What it does

You write your message while paint effects render in the background. A preview button reveals the artwork. Copy, send, and done buttons remain inactive until you've viewed that preview. Whilst you take the time to reflect on the art you've created and maybe the message before you send it. The delay is the point — it's a structural pause between writing something and sending it, built on a specific, well-tested idea about why that gap matters.

The theory

This is a deliberate-friction, cooling-off design. The underlying idea is the hot-cold empathy gap: people in an emotionally activated ("hot") state consistently make different decisions than they would once that activation has settled ("cold") — and, crucially, they tend to badly underestimate how differently they'll see things once it has. A structural pause between composing and sending creates room for that shift to actually happen before the message is out of your hands.

Loewenstein (1996), Organizational Behavior and Human Decision Processes — on hot-cold empathy gaps.

There's a physiological basis for why even a short pause helps. Research on anger and residual arousal found that inserting a time delay reduces aggressive or retaliatory responses, because physiological arousal decays naturally over even a few minutes — this is the empirical basis behind "count to ten" style advice, and it means the pause doesn't need to be long to matter.

Zillmann (1971) and later work on excitation transfer and residual arousal.

Deliberate friction as an intervention against regrettable action is a recognised technique in behavioural design, standing in deliberate contrast to most product design, which tries to remove friction wherever possible. There's real-world precedent for exactly this move: Twitter tested a prompt that interrupted users about to post a reply its system flagged as potentially offensive, asking them to reconsider before it sent. It led 34% of prompted users to revise or delete their draft, and reduced future offensive posting by prompted users by roughly 11% over time — concrete evidence that a mandatory pause before sending changes what people actually choose to send, not just how they feel about it afterward.

Conclusion

The echoprism Composer provides a moment to let you emotions settles before sending a message loaded with emotion. Or it's just a chance to turn something boring into an eye-catching piece of graphic design.