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The Multiverses - Pick your favorite one and tell me why.
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<blockquote data-quote="heka2015" data-source="post: 158637" data-attributes="member: 7351"><p>- If you believe in the Multiverse, or whatever your name for it is, which one of these nine types of parallel universes of Brian Greenes <span style="font-size: 15px">classification scheme</span> would it be?</p><p>- Most importanly how would Time Travel fit in it?</p><p>- Is it really Time Travel you would do in your Multiverse?</p><p></p><p>I am just curious about the common opinion on this.</p><p>Would be great if anybody participates.</p><p>Not exluding those who reach their decision, which Multiverse should be the real one, any other way.</p><p>Please share.</p><p></p><p>Brief explanation of the nine types Green proposes (<a href="https://en.wikipedia.org/wiki/Multiverse#Brian_Greene.27s_nine_types" target="_blank">Wiki-info</a>):</p><p><span style="font-size: 18px"><span style="color: #ffff00"><strong>Quilted</strong></span></span></p><p><span style="font-size: 15px"><strong><span style="color: #ffff00">[SPOILER="Brief description"][/SPOILER]</span>[SPOILER="Brief description"]<span style="color: #000000">The quilted multiverse works only in an infinite universe. With an infinite amount of space, every possible event will occur an infinite number of times. However, the speed of light prevents us from being aware of these other identical areas.</span>[/SPOILER]</strong></span></p><p><strong><span style="font-size: 18px"><span style="color: #ffff00">Inflationary</span></span></strong></p><p><strong>[SPOILER="Brief description"]<span style="font-size: 15px"><span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/Eternal_inflation" target="_blank">inflationary multiverse</a> is composed of various pockets in which inflation fields collapse and form new universes.</span></span>[/SPOILER]</strong></p><p><strong><span style="color: rgb(255, 255, 0)"><span style="font-size: 18px"><strong>Brane</strong></span></span></strong></p><p><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="color: rgb(255, 255, 0)">[SPOILER="Brief description"][/SPOILER]</span></strong><span style="color: #ffff00">[SPOILER="Brief description"][/SPOILER]</span>[SPOILER="Brief description"]<span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/Brane_cosmology" target="_blank">brane multiverse</a> version postulates that our entire universe exists on a membrane (<a href="https://en.wikipedia.org/wiki/Brane_multiverse" target="_blank">brane</a>) which floats in a higher dimension or "bulk". In this bulk, there are other membranes with their own universes. These universes can interact with one another, and when they collide, the violence and energy produced is more than enough to give rise to a <a href="https://en.wikipedia.org/wiki/Big_Bang" target="_blank">big bang</a>. The branes float or drift near each other in the bulk, and every few trillion years, attracted by gravity or some other force we do not understand, collide and bang into each other. This repeated contact gives rise to multiple or "cyclic" <a href="https://en.wikipedia.org/wiki/Big_Bang" target="_blank">big bangs</a>. This particular hypothesis falls under the string theory umbrella as it requires extra spatial dimensions.</span>[/SPOILER]</span></strong></span></strong></p><p><strong><span style="font-size: 18px"><strong><span style="color: rgb(255, 255, 0)"><strong>Cyclic</strong></span></strong></span></strong></p><p><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="color: rgb(255, 255, 0)">[SPOILER="Brief description"][/SPOILER]</span></strong><span style="color: #ffff00">[SPOILER="Brief description"][/SPOILER]</span>[SPOILER="Brief description"]<span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/Cyclic_model" target="_blank">cyclic multiverse</a> (via the <a href="https://en.wikipedia.org/wiki/Ekpyrotic_scenario" target="_blank">ekpyrotic scenario</a>) has multiple <a href="https://en.wikipedia.org/wiki/Brane" target="_blank">branes</a> (each a universe) that have collided, causing <a href="https://en.wikipedia.org/wiki/Big_Bang" target="_blank">Big Bangs</a>. The universes bounce back and pass through time until they are pulled back together and again collide, destroying the old contents and creating them anew.</span>[/SPOILER]</span></strong></span></strong></span></strong></p><p><strong><span style="font-size: 18px"><strong><strong><span style="color: rgb(255, 255, 0)"><strong>Landscape</strong></span></strong></strong></span></strong></p><p><strong><span style="font-size: 15px"><strong>[SPOILER="Brief description"][/SPOILER]</strong>[SPOILER="Brief description"]</span></strong></p><p><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/String_theory_landscape" target="_blank">landscape multiverse</a> relies on string theory's <a href="https://en.wikipedia.org/wiki/Calabi%E2%80%93Yau_manifold" target="_blank">Calabi–Yau</a> spaces. Quantum fluctuations drop the shapes to a lower energy level, creating a pocket with a set of laws different from that of the surrounding space.</span></span></strong></span></strong></span></strong>[/SPOILER]</span></strong></p><p><strong><span style="font-size: 18px"><strong><strong><strong><span style="color: rgb(255, 255, 0)"><strong>Quantum</strong></span></strong></strong></strong></span></strong></p><p><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="color: rgb(255, 255, 0)">[SPOILER="Brief description"][/SPOILER]</span></strong><span style="color: #ffff00">[SPOILER="Brief description"][/SPOILER]</span>[SPOILER="Brief description"]<span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/Many-worlds_interpretation" target="_blank">quantum multiverse</a> creates a new universe when a diversion in events occurs, as in the <a href="https://en.wikipedia.org/wiki/Many-worlds_interpretation" target="_blank">many-worlds interpretation</a> of quantum mechanics.</span>[/SPOILER]</span></strong></span></strong></span></strong></span></strong></span></strong></p><p><strong><span style="font-size: 18px"><strong><strong><strong><strong><span style="color: rgb(255, 255, 0)"><strong>Holographic</strong></span></strong></strong></strong></strong></span></strong></p><p><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="color: rgb(255, 255, 0)">[SPOILER="Brief description"][/SPOILER]</span></strong><span style="color: #ffff00">[SPOILER="Brief description"][/SPOILER]</span>[SPOILER="Brief description"]<span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/Holographic_principle" target="_blank">holographic multiverse</a> is derived from the theory that the surface area of a space can simulate the volume of the region.</span>[/SPOILER]</span></strong></span></strong></span></strong></span></strong></span></strong></span></strong></p><p><strong><span style="font-size: 18px"><strong><strong><strong><strong><strong><span style="color: rgb(255, 255, 0)"><strong>Simulated</strong></span></strong></strong></strong></strong></strong></span></strong></p><p><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="color: rgb(255, 255, 0)">[SPOILER="Brief description"][/SPOILER]</span></strong><span style="color: #ffff00">[SPOILER="Brief description"][/SPOILER]</span>[SPOILER="Brief description"]<span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/Simulated_reality" target="_blank">simulated multiverse</a> exists on complex computer systems that simulate entire universes.</span>[/SPOILER]</span></strong></span></strong></span></strong></span></strong></span></strong></span></strong></span></strong></p><p><strong><span style="font-size: 18px"><strong><strong><strong><strong><strong><strong><span style="color: rgb(255, 255, 0)"><strong>Ultimate</strong></span></strong></strong></strong></strong></strong></strong></span></strong></p><p><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="font-size: 15px"><strong><span style="color: rgb(255, 255, 0)">[SPOILER="Brief description"][/SPOILER]</span></strong><span style="color: #ffff00">[SPOILER="Brief description"][/SPOILER]</span>[SPOILER="Brief description"]<span style="color: #000000">The <a href="https://en.wikipedia.org/wiki/Mathematical_universe_hypothesis" target="_blank">ultimate multiverse</a> contains every mathematically possible universe under different laws of physics.</span>[/SPOILER]</span></strong></span></strong></span></strong></span></strong></span></strong></span></strong></span></strong></span></strong></p></blockquote><p></p>
[QUOTE="heka2015, post: 158637, member: 7351"] - If you believe in the Multiverse, or whatever your name for it is, which one of these nine types of parallel universes of Brian Greenes [SIZE=4]classification scheme[/SIZE] would it be? - Most importanly how would Time Travel fit in it? - Is it really Time Travel you would do in your Multiverse? I am just curious about the common opinion on this. Would be great if anybody participates. Not exluding those who reach their decision, which Multiverse should be the real one, any other way. Please share. Brief explanation of the nine types Green proposes ([URL='https://en.wikipedia.org/wiki/Multiverse#Brian_Greene.27s_nine_types']Wiki-info[/URL]): [SIZE=5][COLOR=#ffff00][B]Quilted[/B][/COLOR][/SIZE] [SIZE=4][B][COLOR=#ffff00][SPOILER="Brief description"][/SPOILER][/COLOR][SPOILER="Brief description"][COLOR=#000000]The quilted multiverse works only in an infinite universe. With an infinite amount of space, every possible event will occur an infinite number of times. However, the speed of light prevents us from being aware of these other identical areas.[/COLOR][/SPOILER][/B][/SIZE] [B][SIZE=5][COLOR=#ffff00]Inflationary[/COLOR][/SIZE] [SPOILER="Brief description"][SIZE=4][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/Eternal_inflation']inflationary multiverse[/URL] is composed of various pockets in which inflation fields collapse and form new universes.[/COLOR][/SIZE][/SPOILER] [COLOR=rgb(255, 255, 0)][SIZE=5][B]Brane[/B][/SIZE][/COLOR] [SIZE=4][B][SIZE=4][B][COLOR=rgb(255, 255, 0)][SPOILER="Brief description"][/SPOILER][/COLOR][/B][COLOR=#ffff00][SPOILER="Brief description"][/SPOILER][/COLOR][SPOILER="Brief description"][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/Brane_cosmology']brane multiverse[/URL] version postulates that our entire universe exists on a membrane ([URL='https://en.wikipedia.org/wiki/Brane_multiverse']brane[/URL]) which floats in a higher dimension or "bulk". In this bulk, there are other membranes with their own universes. These universes can interact with one another, and when they collide, the violence and energy produced is more than enough to give rise to a [URL='https://en.wikipedia.org/wiki/Big_Bang']big bang[/URL]. The branes float or drift near each other in the bulk, and every few trillion years, attracted by gravity or some other force we do not understand, collide and bang into each other. This repeated contact gives rise to multiple or "cyclic" [URL='https://en.wikipedia.org/wiki/Big_Bang']big bangs[/URL]. This particular hypothesis falls under the string theory umbrella as it requires extra spatial dimensions.[/COLOR][/SPOILER][/SIZE][/B][/SIZE] [SIZE=5][B][COLOR=rgb(255, 255, 0)][B]Cyclic[/B][/COLOR][/B][/SIZE] [SIZE=4][B][SIZE=4][B][SIZE=4][B][COLOR=rgb(255, 255, 0)][SPOILER="Brief description"][/SPOILER][/COLOR][/B][COLOR=#ffff00][SPOILER="Brief description"][/SPOILER][/COLOR][SPOILER="Brief description"][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/Cyclic_model']cyclic multiverse[/URL] (via the [URL='https://en.wikipedia.org/wiki/Ekpyrotic_scenario']ekpyrotic scenario[/URL]) has multiple [URL='https://en.wikipedia.org/wiki/Brane']branes[/URL] (each a universe) that have collided, causing [URL='https://en.wikipedia.org/wiki/Big_Bang']Big Bangs[/URL]. The universes bounce back and pass through time until they are pulled back together and again collide, destroying the old contents and creating them anew.[/COLOR][/SPOILER][/SIZE][/B][/SIZE][/B][/SIZE] [SIZE=5][B][B][COLOR=rgb(255, 255, 0)][B]Landscape[/B][/COLOR][/B][/B][/SIZE] [SIZE=4][B][SPOILER="Brief description"][/SPOILER][/B][SPOILER="Brief description"] [B][SIZE=4][B][SIZE=4][B][SIZE=4][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/String_theory_landscape']landscape multiverse[/URL] relies on string theory's [URL='https://en.wikipedia.org/wiki/Calabi%E2%80%93Yau_manifold']Calabi–Yau[/URL] spaces. Quantum fluctuations drop the shapes to a lower energy level, creating a pocket with a set of laws different from that of the surrounding space.[/COLOR][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SPOILER][/SIZE] [SIZE=5][B][B][B][COLOR=rgb(255, 255, 0)][B]Quantum[/B][/COLOR][/B][/B][/B][/SIZE] [SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][COLOR=rgb(255, 255, 0)][SPOILER="Brief description"][/SPOILER][/COLOR][/B][COLOR=#ffff00][SPOILER="Brief description"][/SPOILER][/COLOR][SPOILER="Brief description"][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/Many-worlds_interpretation']quantum multiverse[/URL] creates a new universe when a diversion in events occurs, as in the [URL='https://en.wikipedia.org/wiki/Many-worlds_interpretation']many-worlds interpretation[/URL] of quantum mechanics.[/COLOR][/SPOILER][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE] [SIZE=5][B][B][B][B][COLOR=rgb(255, 255, 0)][B]Holographic[/B][/COLOR][/B][/B][/B][/B][/SIZE] [SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][COLOR=rgb(255, 255, 0)][SPOILER="Brief description"][/SPOILER][/COLOR][/B][COLOR=#ffff00][SPOILER="Brief description"][/SPOILER][/COLOR][SPOILER="Brief description"][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/Holographic_principle']holographic multiverse[/URL] is derived from the theory that the surface area of a space can simulate the volume of the region.[/COLOR][/SPOILER][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE] [SIZE=5][B][B][B][B][B][COLOR=rgb(255, 255, 0)][B]Simulated[/B][/COLOR][/B][/B][/B][/B][/B][/SIZE] [SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][COLOR=rgb(255, 255, 0)][SPOILER="Brief description"][/SPOILER][/COLOR][/B][COLOR=#ffff00][SPOILER="Brief description"][/SPOILER][/COLOR][SPOILER="Brief description"][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/Simulated_reality']simulated multiverse[/URL] exists on complex computer systems that simulate entire universes.[/COLOR][/SPOILER][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE] [SIZE=5][B][B][B][B][B][B][COLOR=rgb(255, 255, 0)][B]Ultimate[/B][/COLOR][/B][/B][/B][/B][/B][/B][/SIZE] [SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][SIZE=4][B][COLOR=rgb(255, 255, 0)][SPOILER="Brief description"][/SPOILER][/COLOR][/B][COLOR=#ffff00][SPOILER="Brief description"][/SPOILER][/COLOR][SPOILER="Brief description"][COLOR=#000000]The [URL='https://en.wikipedia.org/wiki/Mathematical_universe_hypothesis']ultimate multiverse[/URL] contains every mathematically possible universe under different laws of physics.[/COLOR][/SPOILER][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B][/SIZE][/B] [/QUOTE]
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