This is an alternative interpretation of the accelerating universe theory using experimental redshift data. At low-z (< 0.1), there is no light curve width slowing. At high-z (>0.1), light curve width slowing appears. There is a sparse period of supernovae density around z = 0.1, which appears to be a point where the inclination of light curve width changes. Supernovae fluctuations may show a recycling universe, that is, from supernova remnant to star formation and back to supernova. We also propose Zwicky’s tired light mechanism based on gravitational redshift for a blurring-less, and frequency-independent dispersion-less redshift mechanism.