I Don't Like Notebooks: https://docs.google.com/presentation/d/1n2RlMdmv1p25Xy5thJUhkKGvjtV-dkAIsUXP-AL4ffI/preview?slide=id.g362da58057_0_1
A good discussion of the limitations of Jupyter. It's a challenging design space: you want a helpful code sandbox without reinventing the IDE.