

Diffusion models iteratively convert noise across a space into forms and that’s what they are trained to do. In contrast to, say, a GPT that basically performs a recursive token prediction in sequence. They’re just totally different models, both in structure and mode of operation. Diffusion models are actually pretty incredible imo and I think we’re just beginning to scratch the surface of their power. A very fundamental part of most modes of cognition is converting the noise of unstructured multimodal signal data into something with form and intention, so being able to do this with a model, even if only in very very narrow domains right now, is a pretty massive leap forward.
Daggerheart is not at all a PbtA game, though it borrows elements. It borrows pretty heftily from a lot of predecessors besides 5e, like pbta, fitd, cypher/numenera, and SWRPG/Genesys. With imo the last one sharing the most DNA.