Parallel Mailbox
Letters to a Parallel Universe
Post today away to another possible version of yourself — and receive one sentence that makes you want to keep going.
Play the real build
Pick eight photos that feel like today, seal the envelope and send it — then break the wax on a letter from another life-line. One in a hundred letters arrives gilded.
The exact offline package submitted to RED (Chinese-language UI). Saving and posting need the RED app, so the build falls back to screenshot mode here.
A short end-of-day ritual. No questionnaires, no uploads, no self-analysis — and explicitly not a personality test or fortune-telling. You pick photos that feel like today; a letter arrives from a version of you two to nine years down another life-line.
Seal it, send it, break the wax yourself
Chinese-language product · screens shown as shipped.
Intro
Starfield and planets; the envelope cycles through all 17 designs.
Handover
An empty envelope, addressed to you.
Eight choices
Each picked photo flies into the envelope.
Seal & send
Wax closes it; a warp starfield locks onto your universe.
The letter
You break the seal; the reply and its photo appear.
Why this?
Only the photos you picked explain the result.
256 paths, fully deterministic
Choices resolve into one of four universes. Questions 1–4 score a carrier — people, place, object or ritual. Questions 5–8 score a direction — continuity, connection, guidance or possibility. Same choices, same letter, every time.
Questions
Paths
Universes
Reply photos
Letters
Years later
Companion Universe
Landing Universe
At-Hand Universe
Rhythm Universe
The 16 cinematic night “reply photos”. Choices also encode a postmark from 00 to FF, which maps to how many years later the letter was written.
Narrativise the randomness
Two layers. The causal layer — universe, year, letter, photo — never changes. The surprise layer — envelope, wax, stationery and particles — is drawn by chance and explained as the physics of interdimensional mail, never as “more accurate”.
17 envelopes in pure CSS/SVG — zero bitmaps. Odds verified over 200,000 simulated draws.
From a vintage mailbox to deep space
- Warm bone paper (#F4EFE4), archive red and a Song-style serif built a calm, archival mood.
- A separate feedback page broke the flow between choosing and sending.
- A 2.4 MB sending video and bitmap stationery pushed the package to 8.8 MB.
- Photos load into the envelope inline; you break the wax yourself on delivery.
- Code-drawn warp starfield and CSS letter paper replace video and bitmaps.
- Package shrank from 8.8 MB to 1.9 MB.
