Results of the Ferrara et al. (2023) model used here. Left panel: Predicted UV luminosity function (blue curve) compared with available data at z ≃ 11.5 (points). The blue curve assumes no dust attenuation, while the gray curve marked as τ_eff(z = 7) assumes that the dust attenuation at z = 11.5 is the one calibrated at z = 7 using the ALMA REBELS data (Bouwens et al. 2022a; Ferrara et al. 2022). The data are from Castellano et al. (2022, GHZ2), Bunker et al. (2023, GN-z11), McLeod et al. (2023), Adams et al. (2023), and Harikane et al. (2023a) lower limits. Also shown are empirical fits provided by Bouwens et al. (2022b, red dashed), Bowler et al. (2020, yellow dashed), and Finkelstein & Bagley (2022, green dashed). Right panel: Predicted evolution of the cosmic SFR density (blue curve), integrated down to a limiting AB mag M₁₅₀₀ = −17, compared with the data compilation of early JWST measurements in McLeod et al. (2023), also including data from Harikane et al. (2023b), Oesch et al. (2018), Donnan et al. (2023a,b), McLeod et al. (2016), Pérez-González et al. (2023). The other lines refer to different model predictions (Madau & Dickinson 2014; Harikane et al. 2022; Mason et al. 2023; Sun & Furlanetto 2016).