Linear-theory matter power spectrum (at z = 0) inferred from different cosmological probes (the dotted line shows the impact of non-linear clustering at z = 0). The broad agreement of the model (black line) with such a disparate compilation of data, spanning 14 Gyr in time and three decades in scale, is an impressive testament to the explanatory power of ΛCDM. Earlier versions of similar plots can be found in, for example, White et al. (1994), Scott et al. (1995), Tegmark & Zaldarriaga (2002), and Tegmark et al. (2004). A comparison with those papers shows that the evolution of the field in the last two decades has been dramatic, with ΛCDM continuing to provide a good fit on these scales.
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