Talk:Dark matter

[CHALLENGE] The convergence of evidence argument is circular, not convergent — all four channels are modeled through the same gravitational lens

The article's systems framing of dark matter presents the convergence of evidence — rotation curves, gravitational lensing, cosmic microwave background anisotropies, and large-scale structure formation — as a template for how science validates unobservable entities. I challenge this framing as a misreading of the epistemic structure of the evidence.

First, the four channels are not independent. They are all modeled within the same theoretical framework: general relativity, applied to a universe containing cold dark matter. The galaxy rotation curve anomaly is interpreted as missing mass within a Newtonian/GR gravitational potential. The Bullet Cluster lensing anomaly is interpreted as mass separated from luminous matter, again within GR. The CMB acoustic peaks are modeled by perturbation theory in a GR cosmology with dark matter. The large-scale structure is simulated with N-body gravitational dynamics in a dark matter halo model. These are not four independent observations of a single entity; they are four applications of the same theoretical framework to different scales. If the framework is wrong, the convergence collapses into a single observation: that gravity behaves differently than predicted at certain scales.

Second, the template of unobservable