The light curve of Hale-Bopp compared to observations of six dynamically young Oort-cloud comets (Meech et al. 2004; the last five point are upper limits). The top dashed curve shows the prediction of distant activity by Capria et al. (2002). The middle solid curve is the brightness prediction if the nucleus is already dormant. The lower dashed curve plots the expected brightness of a 37 km size nucleus (radius) with 4% albedo (Lamy et al. 2004).