About this experiment

What this site is

The grand non-linear time experiment is an interactive research toy inspired by classic ESP card tests (including the Zener-style symbols familiar from pop culture). Each visitor can complete blocks of ten quick symbol guesses. After every pick, the site may or may not reveal whether you were right — that visibility is randomized.

We compare accuracy on rounds where feedback was shown to accuracy on blind rounds within the same session. When enough responses accumulate worldwide, we plan to publish pooled findings. Until then, you can still view your own session report and explore aggregate tallies on the leaderboard.

For the full experimental design, statistical definitions, and known limitations, see the methodology page.

Who runs it

This project is created and maintained by John Mulhausen. It is an independent side project — not affiliated with a university lab, not endorsed by Sony Pictures or Ghostbusters, and not a clinical or medical study.

Questions about the site, data handling, or press inquiries are welcome on the contact page.

What we do and do not claim

We do collect anonymous per-test logs (target symbol, your pick, correctness, and whether feedback was shown) so we can compute session-level and global statistics. We treat this as open, good-faith data gathering with transparent methods.

We do not claim that any single session proves extrasensory perception, precognition, or that you personally can “see the future.” A ten-test block is far too small to draw scientific conclusions about an individual. Extraordinary claims require extraordinary evidence; this site is a playful invitation to participate in a larger dataset, not a peer-reviewed publication.

The provocative framing on the home page is intentional storytelling — it asks an interesting “what if” about feedback timing. The actual analysis is descriptive statistics on randomized feedback visibility, compared to a 20% guessing baseline for five symbols.

How to participate

1. Open the home page and tap Start tests.
2. Complete ten symbol picks (no sign-in required).
3. Unlock your personal report and optionally share public or private links.
4. Return later with a private “save for later” link to log additional ten-test blocks on the same session.

Privacy details — including what we store, what we omit, and how ads or analytics may load — are on the privacy page.