Black Hole Information Paradox

The Big Bang should have created equal amounts of matter and antimatter. So ... One of the greatest challenges in physics is to figure out what happened ... Until 14 billion years ago, the universe was contracting. It reached a minimum size at the Big Bang (which we call t = 0) and has been expanding ever since. ( ... Some studies suggest that the state of the universe before the Big Bang is unknown and requires assumptions, while other studies propose scenarios like ... Jun 25, 2012 ... ... the universe, yet all of them happened at the same time. and ... Before the so called Big Bang there was nothing, no space, no time ... Jul 21, 2014 ... MIT professor Alan Guth has spent the past three decades hypothesizing about “what banged, why it banged, [and] what happened before it banged”. Nov 11, 2010 ... Other Big Bangs: Maybe the universe has expansion/collapse cycles? Each cycle would start with a Big Bang, expand, level out, contract, and end ... Mar 6, 2018 ... Stephen Hawking knows what happened before the Big Bang ... Famed physicist Stephen Hawking definitively answered one of humankind's grandest ... Apr 22, 2020 ... In this scenario, the horizon is defined as how far observers can see before the bounce occurs. “The distance that light can propagate before ... ... the universe at least back to 500,000 years before the Big Bang. To probe ... Did the Big Bang Really Happen? Most scientists today would agree that ... Oct 22, 2019 ... It might arise from a pre-existing state that does have a singularity, it might have existed in its inflationary form forever, or the Universe ...