A spacetime mirror is a hypothetical construct in speculative physics and science fiction that reflects not just the three spatial dimensions but also the time dimension. Unlike a standard 3D mirror, which reverses light rays along an axis perpendicular to its surface, a spacetime mirror would reverse along a hyperplane perpendicular to 3+1 spacetime dimensions. The concept serves as a thought experiment to explore the complexities of higher-dimensional spaces and the nature of time.
In the sci-fi novel, the characters used a spacetime mirror to reverse the events of the past and alter the future.
by Phieyl September 5, 2023

Post-Spacetimeism, also Post-Spacetimism or Post-Spacetime, is an ideology that supports the evolution of humankind by superating the spacetime and seeking to develop a civilization beyond spacetime, often believing that spacetime is a form of oppression that must be abolished and there should be developed ways to abolish or to superate or to go beyond space time, or by spiritual means, or by extraphysical means or by technological means. Post-Spacetimeism also believes that there are things beyond spacetime such as there are other dimensions and worlds as well, but natural sciences and technology are still too much limited to study them and that should be developed more studies and technologies for that, often advocating that epistemological pluralism might be necessary for do so. Post-Spacetimeism also support ideas and concepts such as divinialism, extraphysicism, spiritualicism, extraphysicalism, deistology, technodeism, scientific deism, extramaterialism, extranaturalism, soulism, quantumism and spiritualism in order to reach post-spacetimeism easily.
Post-spacetimeism is a nice way to explore what's beyond spacetime easily and reach a post-spacetime civilization anf society easily.
by Full Monteirism May 24, 2021

Post-Spacetime Extranaturalism, also Post-Spacetime Supernaturalism, is a philosophical worldview that holds that the supernatural, also extranatural and paranormal, exists beyond spacetime, where several or all elements related to religion, spirituality, esoterics, occultism, metaphysics and extraphysics, such as spirits, souls, consciousness, afterlife, reincarnation, extraphysical mechanics, divinity, gods, deities, spiritual beings and extraphysical life forms exist beyond spacetime and cannot be determined by things inside spacetime, but they can be felt, experienced and even accessed in spacetime, and, in some cases, bring to the spacetime by some means, such as spiritual means and technological means. Post-Spacetime extranaturalism also believes in post-spacetime extraphysicalism and post-spacetime extramaterialism, where both, extraphysicalism and extramaterialism are about what’s beyond spacetime and they are excellent to determine things beyond spacetime. Post-Spacetime Extranaturalism also rejects any notion and idea of naturalism, physicalism and materialism since it considers there are things beyond spacetime and it says there are 99,9% of chances to exist life, properties and things beyond spacetime, such as spiritual beings, gods, deities, aliens and even things as souls, spirits, consciousness, afterlife, spiritual worlds, spiritual realities, multiverses and other extraphysical things as well.
“Post-Spacetime Extranaturalism is an interesting theory, it might be good on the understanding of what’s beyond spacetime and even encourage people to study what’s beyond spacetime, even it might take a lot of time until post-spacetime studies and technology start to being developed.”
by Full Monteirism June 1, 2021
