Ask HN - Are Dataless Apps the next big thing?

Serverless -> Dataless? Recently at a developer conference, someone from AWS came to talk to us about serverless apps. We joked that the next stage would be "dataless" apps. Apart from the joking, however, I thought there might actually be some truth here. If laws lead to taxing data as a liability, maybe a dataless app could be something like a bunch of neural networks per user where the data ephemerally comes in, contributes to training the network, then is deleted. All that remains are weights in the networks. Thoughts?