"Guth's inflationary theory predicted."
Inflation is part of the standard cosmology. Guth's "multiverse" is just a model for inflation.
In the first 10-34 seconds or so of the universe's history, it underwent a brief period of extremely fast expansion, known as inflation. This period smoothed out the universe's original lumpiness and left it with the homogeneity and isotropy we see today. Quantum mechanical fluctuations during this process were imprinted on the universe as density fluctuations, which later seeded the formation of structure.
http://cosmology.berkeley.edu/Education/CosmologyEssays/The_Standard_Cosmology.html
Ok. You win.