An action, during which one is physically present but, wondering in their mind mentally, not paying attention to reality.
Hey Jenny!...Jenny, hey! HEY! Teacher, Jenny is astral travelling again and not paying attention to class!!
by The demon under your bed. April 28, 2024
Get the astral travelling mug.Getting from A to B at a high enough velocity that Einstein's Special Relativity stops being a math problem and becomes your travel agent. The key feature is time dilation: for the travelers moving at a substantial fraction of light speed, time passes slower than for the people they left behind. You can cross the galaxy within a human lifetime... but you'll return to a future where everyone you know is dust.
*Example: The classic Twin Paradox. One twin blasts off on a round-trip to a star 10 light-years away at 99% light speed. For her, the journey might take 15 years. She comes home only 15 years older. But on Earth, over 20 years have passed. Her stay-at-home brother is now older than her. This isn't sci-fi magic; it's a direct prediction of tested physics. Relativistic travel is the ultimate "you can't go home again" scenario, because home exists thousands of years in your future.*
by Abzugal January 24, 2026
Get the Relativistic Travel mug.The big daddy of all travel concepts: moving through time as well as space in a controlled manner, typically by manipulating the geometry of spacetime itself via General Relativity. This isn't just going fast (relativistic travel), which only goes forward in time. This is about creating closed timelike curves—wormholes, warp drives, cosmic strings—to theoretically hop to the past or distant future without waiting. It's engineering the universe's roadmap to include shortcuts and loops.
Example: The Alcubierre "warp drive" concept is spacetime travel. It doesn't move the ship through space faster than light; instead, it contracts spacetime in front of the ship and expands it behind, effectively surfing on a wave of distorted geometry. The ship sits in a "warp bubble" not subject to relativistic effects. You arrive at your destination quickly without any time dilation mess. Another example is using a traversable wormhole: one mouth is accelerated to near light-speed and brought back, creating a time machine where entering one end exits the other in the past.
by Abzugal January 24, 2026
Get the Spacetime Travel mug.A theoretical propulsion concept that abuses the symmetry-conservation link for movement without apparent reaction. It seeks to engineer a scenario where the symmetry of your vehicle's local physical laws is carefully manipulated, and the resulting conserved quantity (usually momentum) is not expelled locally but is instead "handed off" to a distant field or another part of spacetime geometry. The goal is motion that looks like it violates Newton's third law (for every action, an equal reaction) by satisfying it non-locally via deep physics.
Example: The "Phase Sail." The ship's drive doesn't expel mass. Instead, it cyclically changes the internal gauge symmetry of its quantum vacuum core. Noether's Theorem says this changing symmetry must be accompanied by a conserved current (momentum). By coupling this process to the ship's hull and, crucially, to the background Higgs field of the universe, the momentum conservation is satisfied by imparting an infinitesimally small, opposite change in the field's configuration across the cosmos. The ship moves because the entire universe imperceptibly "pushes back" in a diffuse, non-local way. You're not pushing against anything nearby; you're leveraging the universe as your reaction mass. Noetherian Travel.
by Dumuabzu January 24, 2026
Get the Noetherian Travel mug.A framework for understanding travel not just through space, but through spacetime—manipulating the fabric of reality to move between locations in ways that transcend ordinary motion. Spacetime Travel Theory encompasses wormholes, warp drives, and closed timelike curves—not as science fiction, but as speculative physics. It asks: if spacetime is a fabric, can we fold it, puncture it, stretch it to travel? The theory bridges general relativity and engineering dreams.
"The Alcubierre drive doesn't move through space; it moves spacetime itself. Spacetime Travel Theory says that's the key: don't move in spacetime; move spacetime. Travel becomes manipulation, not locomotion. The question isn't whether we can go fast; it's whether we can bend the road."
by Dumu The Void March 5, 2026
Get the Spacetime Travel Theory mug.by TheGeneralGenitalsPranksterian May 11, 2025
Get the I Traveled Through TIme BEcause,I , ANgel Josee RObles' Genitals Are Long<.7.9.7.6.> mug.Travel undertaken as a strong response to a previous period of restrictions or inability to travel, such as during the COVID-19 pandemic. This term reflects the desire to make up for lost time and experiences by engaging in extensive or indulgent travel.
After the lockdowns ended, many people embraced revenge travel, booking trips to make up for the time they spent at home during the pandemic.
by Emotional Cruiser September 19, 2025
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