Similar to Fig. 5, we dissect the various sources of gas that populate z = 0 clouds, split based on their origin source: those arising from the central galaxy in the left panel, through condensation of hot halo gas in the center, and from satellites in the right. The five different colors correspond to the distinct pathways that we consider. Similar to cold seeds, ≳ 80 % of the z = 0 mass was in the IGM at z ∼ 2.