.... I'm not aware of any predictions made by string theory that have be experimentally confirmed.
Well, it is a knotty problem.
yes it is and for that we can thank Knot theory, and using least coloring, can determine the order of the knot (eg.Trifoil, torus, and 4 dimensional manifolds.
Three strings walked into bar and the first one order 3 scotches
bartender said we don't serve your kind here
second string said give us 3 scotch
bartender said like I told your friend we don't serve your kind here.
third string tied himself in a nasty tangle, pulled strands out of his end to create a wild mop hairdo and said to the bartender give us 3 scotches
bartender says your not fooling me, your one of those strings,
3 string looked straight in the eye and said Nope I,m a frayed knot.
