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The two dimensional system of electrons in a high magnetic field offers anopportunity to investigate a phase transition from a quantum liquid into aWigner solid. Recent experiments have revealed an incipient composite fermionliquid in a parameter range where theory and many experiments had previouslysuggested the Wigner crystal phase, thus calling into question our currentunderstanding. This Letter shows how very small quantitative corrections (< 1%)in the energy due to the weak interaction between composite fermions can causea fundamental change in the nature of the ground state, thus providing insightinto the puzzling experimental results.Comment: 4 pages, 2 figure

Two-Dimensional Electron System in High Magnetic Fields: Wigner Crystal versus Composite-Fermion Liquid