Thinking further, what I'd like is something like fractals. You can keep zooming in on your information down to the details - but also out to an overview. Nope

Thinking further, what I'd like is something like fractals. You can keep zooming in on your information down to the details - but also out to an overview. Nope, no idea how that would work, other than when I'm mind mapping I would have it work like Workflowy, where you can focus on each node in turn -- so you can zoom down to a node, and have an entire mindmap off there. Zoom to one of its nodes and be in another mind map.