there is lot of training happening on the edge (mobile devices) as well, look up 'federated learning' https://medium.com/syncedreview/federated-learning-the-fut

there is lot of training happening on the edge (mobile devices) as well, look up 'federated learning' https://medium.com/syncedreview/federated-learning-the-future-of-distributed-machine-learning-eec95242d897 https://medium.com/syncedreview/federated-learning-the-futur...