Created by Ashley Lucas
Balanced physics theories, experiments, and philosophy of time travel
Explore the latest content tracked by Temporal Frontier Review
As an object moves closer to the speed of light, time for that object appears to slow down relative to a stationary observer, creating effective one-way displacement into the future with no mechanism for travel into the past.
Hawking lacked an equation for time travel yet deployed sharp humor when asked for one, underscoring how popular fascination often outpaces the rigorous physics needed to assess such claims.
Relativity gives us experimentally supported time dilation: clocks slow under stronger gravity or higher speeds, with no absolute time across...
The Broadway revival spotlights how Cursed Child's illegal Time-Turner produces branching timelines via entanglement-driven decoherence, matching the...
Physicist Robert Nemiroff proposes a hidden field in 5D spacetime—three space plus two time dimensions—to connect only entangled particles and replace...
The 'empty envelope' thought experiment contends that genuine agency makes sending a usable message to the past incoherent.
With real choice,...
Group Field Theory proposes spacetime is not fundamental but emerges from pre-geometric "atoms of space" that exist outside time and geometry...
Six movies build time travel around named physics concepts instead of arbitrary rules.
Fixed-t orbits form closed timelike curves of proper duration 2πt when gθθ > 0 and the orbits remain compact, directly tying stable spacetime structure to potential decoherence effects in quantum gravity models.
Herbert's foldspace travel maps to Einstein-Rosen wormholes, not Alcubierre bubbles, because the far mouth must be located and stabilized before...
Two distinct approaches now converge on spacetime's non-fundamentality. Pure shape dynamics recovers temporal ordering from internal structural...
Frame-dragging measured around Earth to one part in a thousand confirms general relativity at record precision and constrains alternative theories...
Physicists at CUNY have experimentally realized a temporal boundary that generates electromagnetic waves with reversed time evolution, directly...
Relativistic time dilation already enables verified forward travel by slowing clocks in motion or gravity.
Nadia Afifi's A Fugitive's History of the Known Universe grounds its wormhole-diving historians in real Planck-scale quantum foam research tied to...
Timelike T-duality acts as a looking-glass, mapping Carroll-like geometries onto de Sitter holography alongside Galilei structures and AdS.
A new accelerating wave equation shows that waves with varying speeds can only advance toward positive time, offering a microscopic basis for the...
Physics requires time to feature in precise, mathematically expressed dynamic laws that predict future states from present ones.
Newton framed space as an immutable container and time as universal flow independent of matter. Einstein recast them as a dynamic, observer-dependent...
