For more details, refer to Schmidhuber's own website: http://people.idsia.ch/~juergen/ and his excellent review paper, "Deep Learning in Neural Networks: An Overview": https://arxiv.org/pdf/1404.7828.pdf
"""Since age 15 or so, the main goal of professor Jürgen Schmidhuber has been to build a self-improving Artificial Intelligence (AI) smarter than himself, then retire."""
I like this approach.