> What we really need is a schematic diagram. It’s not obvious how we will get to there from here. The rise of gene-based identification of cell types, allowin

> What we really need is a schematic diagram. It’s not obvious how we will get to there from here. The rise of gene-based identification of cell types, allowing for much more fine-grained understanding of how the cells are connected and develop than morphological identification alone, is a pretty good start I'd say.