Hi everybody! I need some help putting thoughts into words.. I'm trying to express the idea that finding an optimal solution to a system of N equations requires at least as many measurements, but also that these measurements need to be "sufficiently uncorrelated/independent" (because if they're "too correlated" I would need some M>N measurements to have enough "information" to reach an optimum). Measurements are not random, but rather something like v[1,2...] = v_common + v_unique[1,2,...] ...