Just in case you missed it: https://research.googleblog.com/2017/06/multimodel-multi-task-machine-learning.html (I can't personally add much to this myself as I not even close to understanding the technical details, but in my opinion this seems like it could be an important step towards a more general artificial intelligence and I wanted to share).
Also, recently I have been thinking about searching for an intersection between decentralization and machine learning. Let me know if you are interested. 😄