Theory of Everything

Last week, I wrote about how scientists eventually solved the mystery of the Moon’s origins.  They took several theories, each with evidence for and against it, and combined them into the Giant Impact Theory.  Click here for last week’s post.

Today, scientists are struggling with an even bigger puzzle.  How do we reconcile general relativity with quantum mechanics?  Evidence supports them both.  Relativity works great with really big objects, like planets and stars; quantum mechanics works well for small things like electrons and quarks.

Although there isn’t much experimental data to support it, String Theory is the best guess we have.  It tells us the universe has more than three spatial dimensions, but all those extra dimensions are too small to easily observe.  Subatomic particles are one-dimensional strings, which means…

Okay, to be honest I don’t understand String Theory.  I’m not a real scientist, just a science enthusiast, and reading about one-dimensional strings in a ten-dimensional universe hurts my brain.  The problem is there are so many versions of String Theory, each of which only solve a part of this complex puzzle.

The universe is such a strange place.  Sometimes I wonder if there are things human beings can never understand.  The so-called Theory of Everything, I believe, is not one of them.  Much like the origin of the Moon, this is a puzzle we can solve.  We’ve already put some of the pieces together­—the various versions of String Theory—we just need a clever scientist to figure out how those pieces connect.

P.S.: I forgot to add a sci-fi tie-in.  In Xenocide by Orson Scott Card, some clever scientists use something like String Theory to prove human beings have souls.  This is why I prefer science fiction, because real science will never do that.

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