Preserved Causality Theory

A hypothetical framework proposing that faster-than-light (FTL) travel does not necessarily imply time travel or causality violation. Contrary to conventional physics (where FTL equals time travel via relativity), Preserved Causality Theory suggests that causality is more fundamental than light speed limits—that there's a deeper structure ensuring causes precede effects regardless of velocity. This could involve privileged reference frames, quantum non-locality extended to macroscopic scales, or novel spacetime geometry that allows FTL without temporal paradoxes. The theory opens the door to interstellar travel while keeping grandma safe from accidental erasure. It's the dream of every sci-fi fan who wants warp drive without the headache of meeting your own grandfather.

"But Einstein said FTL equals time travel!" they protested. "Preserved Causality Theory," the warp drive engineer replied, "suggests Einstein was right about light but wrong about causality being tied to it. We're going to Alpha Centauri in a week, and we'll be back before we left—no, wait, we'll be back after we left. Causality preserved. Probably." The theory remains unproven, but so does faster-than-light travel itself."

by Nammugal March 4, 2026

Outer Spacetime Theory

A speculative framework proposing that our observable spacetime is not the only one—that there may be "outer" spacetime beyond or outside our cosmological horizon. Outer Spacetime Theory suggests that the universe we observe is a bubble, a membrane, or a region within a larger multiverse of spacetime manifolds. This outer spacetime might have different dimensions, different physical constants, or different laws entirely. The theory extends relativity beyond the observable, asking what lies outside—not just in space, but in the fabric of reality itself. It's cosmology's frontier: what's beyond the cosmic horizon?

"Our universe is 13.8 billion years old, but Outer Spacetime Theory asks: old relative to what? Our spacetime might be a bubble in a vast cosmic ocean of other spacetimes. The question isn't just what's in the universe; it's what's outside the universe. Outer Spacetime: the ultimate beyond."

by Dumu The Void March 5, 2026

Extended Spacetime Theory

A speculative framework proposing that spacetime is not limited to the four dimensions (three space + one time) we currently perceive, but extends into additional dimensions or structures that fundamentally change our understanding of reality. Extended Spacetime Theory suggests that what we call "spacetime" is just a slice, a projection, or a low-dimensional shadow of a richer, higher-dimensional manifold. These extra dimensions might be compactified (curled up at tiny scales), expanded (large but invisible to us), or exist in parallel branes (membranes in higher-dimensional space). The theory extends Einstein's relativity by asking: if spacetime can curve, why can't it also extend? It's relativity pushed to its logical conclusion—spacetime isn't just flexible; it's extensible.

"Einstein showed spacetime curves. Extended Spacetime Theory asks: curves into what? The answer: into higher dimensions we can't see. Our universe is a four-dimensional surface in a ten-dimensional sea. Extended Spacetime doesn't replace relativity; it completes it. Spacetime doesn't just bend; it extends—into realms we're only beginning to imagine."

by Dumu The Void March 5, 2026

Extended Relativity Theory

A generalization of Einstein's relativity proposing that relativity extends beyond motion and gravity to include other frames—reference frames based on scale, complexity, or consciousness. Extended Relativity suggests that just as motion is relative, so might be size (scale relativity), information (informational relativity), or even perspective (perspectival relativity). The theory unifies different kinds of relativity under a single framework: everything is relative to something. Einstein started it; Extended Relativity finishes it—relativity all the way down.

Extended Relativity Theory "Einstein said motion is relative. Extended Relativity says scale is relative too—physics looks different at quantum and cosmic scales, but neither is more fundamental. Relativity isn't just about velocity; it's about everything. The universe is a web of relations; Extended Relativity maps them all."

by Dumu The Void March 5, 2026

Outer Relativity Theory

A synthesis of Outer Spacetime and Extended Relativity, proposing that relativity itself extends beyond our spacetime—that there may be frames of reference outside our observable universe, and that physical laws are relative to the spacetime manifold one inhabits. Outer Relativity suggests that what we call "universal" laws might be local to our cosmic neighborhood. Beyond our spacetime, different relativities apply. It's relativity applied to the multiverse: every universe has its own relativity.

"Our laws of physics might be local bylaws, not universal absolutes. Outer Relativity Theory says: different spacetimes, different relativities. What's constant here might vary there. Relativity doesn't stop at the cosmic horizon; it extends beyond—to outer relativity."

by Dumu The Void March 5, 2026

Preserved Causality Theory

A framework proposing that causality is fundamental and conserved—that even in extreme conditions (FTL travel, time dilation, quantum weirdness), cause-effect relationships are preserved. Preserved Causality suggests that causality isn't just a feature of our spacetime but a conserved quantity, like energy or momentum. You can stretch it, bend it, maybe even warp it—but you cannot break it. FTL doesn't mean time travel; it means we don't yet understand how causality is preserved at those speeds.

"They said FTL means time travel—therefore impossible. Preserved Causality Theory says: maybe causality is conserved, like energy. We don't know how FTL preserves it, but that doesn't mean it can't. The theory buys time for engineers: causality isn't fragile; it's fundamental."

by Dumu The Void March 5, 2026

Conserved Causality Theory

A variant of Preserved Causality, emphasizing causality as a conserved quantity analogous to energy, momentum, or charge. Conserved Causality suggests that in any physical process, the total causal order—the network of cause-effect relationships—remains invariant. You can transform it, redistribute it, but you cannot create or destroy causal connection. The theory provides a framework for thinking about time travel, quantum entanglement, and FTL without paradox: causality is conserved, so any apparent violation must be balanced elsewhere.

"Entanglement seems to violate causality—instant influence across space. Conserved Causality Theory says: maybe causality is conserved, like energy. The influence goes somewhere, does something, balances out. Not violation, but transformation. Causality isn't broken; it's just moved around."

by Dumu The Void March 5, 2026