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Editor’s note: Since 2015, the Simons Foundation has supported the “It from Qubit” collaboration, a group of scientists drawing on ideas from quantum information theory to address deep issues in fundamental physics. The collaboration held its “Last Hurrah” event at Perimeter Institute last week. Here is a transcript of remarks by John Preskill at the…
The holographic universe theory still grips physicists 25 years since it was first published. Here’s what it is all about
"I just think too many nice things have happened in string theory for it to be all wrong. Humans do not understand it very well, but I just don't believe there is a big cosmic conspiracy that created this incredible thing that has nothing to do with the real world." -Edward Witten
In Einstein's relativity and the Standard Model, we only have three spatial dimensions. But there could be more, and many think there are.
