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The Dream Of String Theory Is An Unlikely Broken Box

“This is the dream of String Theory: that we can take this theory, like some enormous unbroken box, and stick the right key in it and watch it crumble away, leaving only a tiny piece left that perfectly describes our Universe. In the absence of such a key, String Theory can only be considered a physical speculation.

It may be interesting and promising, but until we can solve String Theory in a meaningful way to get the Universe we observe out of it, we have to admit to ourselves what String Theory truly is: a large, unbroken box that must somehow crumble in this particular, intricate fashion, to recover the Universe we observe. Until we understand how this occurs, String Theory will only remain a speculative dream.”

10 dimensions? Get rid of 6! Scalar-tensor theory of gravity? Get rid of the scalar part! Too much supersymmetry? Get rid of it! Too large of a Lie group? Get rid of everything we don’t observe! String theory has to throw away much, much more than it keeps if it wants to describe our Universe.

Here’s the real dream of String Theory, and why it’s so hard to believe it will ever become a reality.