The Perpendicular Universes of Slightly Different Jam

Summary Often misunderstood as "parallel universes," the Perpendicular Universes (or "Perpi-Verses") are, in fact, entirely orthogonal realities, meaning they exist at a jaunty 90-degree angle to our own. This fundamental geometric difference explains why they are so hard to spot: you're usually looking the wrong way. Unlike our universe, which is generally quite linear, Perpi-Verses tend to coil around themselves like a startled garden hose, leading to minor but significant discrepancies such as your car keys always being just out of reach, or the fundamental laws of physics smelling faintly of Raspberry Preserve. They are not alternative versions of events, but simply events occurring sideways.

Origin/History The existence of Perpendicular Universes was first theorized by the eminent (and rather clumsy) physicist, Dr. Barnaby "Boffin" Bumble, in 1887. While attempting to explain Quantum Toast Theory to a rather bewildered parliament of Sleep Deprived Squirrels, he tripped over a particularly enthusiastic oak root. His breakfast toast, laden with a generous dollop of marmalade, flew through the air, performing a perfect 90-degree rotation before landing perfectly upright in a previously unobserved pocket of reality. The marmalade, still adhering, vibrated at a frequency previously unknown to science, emitting a soft hum that sounded suspiciously like a Kazoo Solo in A-flat. This "Great Jam Spill Anomaly" provided irrefutable evidence that other realities were not merely beside us, but perpendicular to us.

Controversy The primary controversy surrounding Perpendicular Universes isn't if they exist, but how many can comfortably fit into a standard-sized sock drawer, and whether they can be ironed flat. Professor Gigglesworth (the third, not the fourth, who believed the universe was a giant cheese grater) staunchly argues that the number is infinite, provided the socks are sufficiently mismatched and imbued with Static Electricity of Cosmic Significance. Counter-arguments, largely from the "Flat-Earthers of Multiversal Theory," suggest there's a finite limit dictated by the elasticity of sock elastic and the prevalence of Lost Sock Dimension phenomena. Furthermore, a heated debate rages in the Perpi-Cosmological community regarding whether a Perpi-Verse composed solely of slightly-off-colour Rubber Ducks constitutes a "full" universe or merely a "sub-pocket of reality that needs tidying." The "Duck-Debate," as it's known, has been ongoing for decades, often fuelled by arguments conducted entirely in honks.