I am saying that I am not aware of many things it successfully predicted ahead of observations being made.
CDM successfully predicted the CMB features that COBE could measure. LCDM certainly was a known model before supernova data in the 90s first provided evidence for it. CMB data shortly after detected a consistent fraction of \Lambda and have since provided evidence of multiple kinds (structure growth in addition to the original, the distance to the last scattering surface). Distances from baryon acoustic oscillations are another subsequent, independent test that corroborated the LCDM model.
2 and (especially) 1 are to me too speculative to place much weight on. I would also draw analogy to the Standard Model of particle physics: its predictivity and past success are not refuted by any deficiencies beyond the regimes we've been able to probe thusfar. (Of course, in the SM we fully expect those deficiencies.) Just to say that not every failed prediction falsifies a model's success in previously established regimes of energy/scale/dynamics.
By the way, I am not saying LCDM is not massively successful. It can clearly be used to explain a lot of things.
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CDM successfully predicted the CMB features that COBE could measure. LCDM certainly was a known model before supernova data in the 90s first provided evidence for it. CMB data shortly after detected a consistent fraction of \Lambda and have since provided evidence of multiple kinds (structure growth in addition to the original, the distance to the last scattering surface). Distances from baryon acoustic oscillations are another subsequent, independent test that corroborated the LCDM model.
2 and (especially) 1 are to me too speculative to place much weight on. I would also draw analogy to the Standard Model of particle physics: its predictivity and past success are not refuted by any deficiencies beyond the regimes we've been able to probe thusfar. (Of course, in the SM we fully expect those deficiencies.) Just to say that not every failed prediction falsifies a model's success in previously established regimes of energy/scale/dynamics.
Sure, I didn't think so.