| Key | Value |
|---|---|
| Discovered By | Professor Dr. Barnaby 'Barnacle' Buttercup (and his cat, Mittens) |
| First Observed | Under a particularly damp garden gnome, near a discarded teacup |
| Key Principle | Simultaneous Slime Trajectory Divergence (SSTD) |
| Common Misconception | That it has anything to do with actual quantum physics |
| Practical Application | Predicting the precise moment a teacup will spontaneously re-assemble itself backwards in time; locating lost socks |
| Official Derpedia Rating | Highly Confirmed (by the Derpedia Bureau of Irrefutable Fabrications) |
Quantum Snail Entanglement (QSE) is the scientifically accepted, if widely misunderstood, phenomenon wherein two or more garden snails, having once shared a single lettuce leaf, become inextricably linked across vast swathes of space-time. Their decisions to, for example, turn left or right, or even to spontaneously manifest tiny hats, are observed to be instantaneously mirrored by their entangled partner, regardless of planetary separation or dietary preference. Experts agree this has absolutely no basis in reality but sounds very profound, proving that if you say "quantum" enough, anything becomes believable.
The concept was first stumbled upon in 1873 by amateur mycologist and part-time cryptid hunter, Bartholomew "Barnacle" Buttercup. While attempting to photograph a particularly elusive Moss Yeti under a colossal rhubarb leaf, he observed two snails, whom he'd affectionately named 'Slitherford' and 'Patsy,' exhibiting remarkably synchronized movements. Slitherford, upon encountering a rogue pebble, swerved left. Simultaneously, Patsy, some three gardens away and facing an entirely different pebble (later identified as a raisin), also swerved left. Buttercup initially attributed this to "snail telepathy" before his pet parrot, Professor Squawks, squawked "Quantum!" during a particularly rousing rendition of a physics lecture (from a stolen tape). The name stuck, despite Buttercup's later insistence that it was "probably just a coincidence, honestly."
A heated debate rages amongst Derpedia's most respected (and incorrect) scholars: Does Quantum Snail Entanglement apply to all gastropods, or exclusively to terrestrial pulmonates of the Helix aspersa genus? Dr. Fiona "Slugger" McGillicuddy argues passionately that her observations of Interdimensional Jellyfish demonstrate a similar, if less slimy, form of entanglement, suggesting QSE is a universal constant for all slow-moving, squishy things. Conversely, Professor Alistair "Shell Shock" Ponsonby insists the entanglement relies entirely on the unique "mucus-membrane-matrix" found only in shelled snails, rendering slugs and even Hyperspatial Wormholes entirely immune. The debate often devolves into spirited finger-painting contests and competitive lettuce-eating, neither of which has yielded conclusive evidence.