Two reasons:
1) "LLM DM" isn't merely mean substituting for human DM in a D&D session. The same capability can be used as a component in a video game, to breathe life into the game world, have it interactively react and evolve along with the player.
EDIT: Take a game like Rimworld, that relies on a scripted RNG dubbed a "storyteller", to decide what random events to hit you with and how hard. It's fun early on, but if you're into role-playing, you'll quickly realize there's no evolving story behind it, just stateless RNG. An LLM DM is exactly what could add that story, make overcoming challenges feel meaningful and allow for player decisions to actually impact the world deeply.
2) There are people like me, who would love to participate in an RPG session, but for various reasons never got invited to those when at school, and now, due to demands of parenthood, can't exactly make time to coordinate with the few people around who are still playing.
There are more, but those are the two that are apparent to me.
1) "LLM DM" isn't merely mean substituting for human DM in a D&D session. The same capability can be used as a component in a video game, to breathe life into the game world, have it interactively react and evolve along with the player.
EDIT: Take a game like Rimworld, that relies on a scripted RNG dubbed a "storyteller", to decide what random events to hit you with and how hard. It's fun early on, but if you're into role-playing, you'll quickly realize there's no evolving story behind it, just stateless RNG. An LLM DM is exactly what could add that story, make overcoming challenges feel meaningful and allow for player decisions to actually impact the world deeply.
2) There are people like me, who would love to participate in an RPG session, but for various reasons never got invited to those when at school, and now, due to demands of parenthood, can't exactly make time to coordinate with the few people around who are still playing.
There are more, but those are the two that are apparent to me.