On the demo they have previous visits from your fingerprint listed (so you can get an idea of how common the fingerprint is... at least once enough people have tried the demo). Mine had two visits listed which are not mine when using Safari and private relay. On Firefox there were none (and it tracked in normal and private mode).
On my iPhone, I was surprised to see I had made 20+ visits when in reality that was my first visit to fingerprint.com. It makes me feel better that my fingerprint isn't actually unique!
The combination of natural language communication with search and planning is very exciting. Although it has been overshadowed by the popularity of ChatGPT, [1] demonstrates the capability of using intents generated through a strategic planning stage to drive convincing human-like dialogue (as tested in blitz Diplomacy).
I'm really interested in the creation of human-compatible agents. As you mention, these agents will likely be composed of multiple components which have specialised functionality.
[1] "Human-level play in the game of Diplomacy by combining language models with strategic reasoning", explores the integration of language models with strategic reasoning. https://www.science.org/doi/10.1126/science.ade9097