I really like the first two ideas: I think they're pretty open and interpretable. I feel like the last couple of LD themes have been too straightforward... Like, "Start with nothing": It's very clear on what it means, which is a downside for me because I think game jams are at their best when they let people do almost whatever you want with them. "Your life is currency" was one I really didn't like, because I felt forced to use the player's life as a currency in a shop, or as ammo. I think themes should be up for interpretation, so that you get a variety of games that all used the same phrase or word in wildly different ways

I've also been playing a lot of Factorio, and I'm just curious what jammers could do with Automation. I think that could be super interesting.