This years workshop and summer school on Intrinsically Motivated Open-ended Learning (IMOL) attracted about 50 researchers to the Frankfurt Institute of Advanced Studies (FIAS). Prof. Steil gave a talk on "Goal Babbling to model and explain human exploratory learning", which featured recently published results (Rhode et al., Plos Comp. Biology, 2019) on an experiment to test hypothesis on human learning were derived from the computational model of Goal Babbling, which has been developed in Prof. Steils group earlier.