Observed (symbols) and simulated (lines) comoving SFRDs for Salpeter (this work) and top-heavy (previous works) PopIII IMFs and model variations including: CDM and WDM (Maio & Viel 2015, 2023), non-Gaussianities (f_NL = 0, 100; Maio & Iannuzzi 2011), and primordial bulk flows at 60 km/s (Maio et al. 2011b). Total SFRDs for different models and resolutions (blue shade) and JWST PopIII determinations (red shade) are also shown. Observational SFRDs are from Reddy et al. (2008), Merlin et al. (2019), Bhatawdekar et al. (2019), Bouwens et al. (2021), Donnan et al. (2023a,b), Harikane et al. (2024), and Fujimoto et al. (2025).