Any name. No email, no password. Pick a towel colour so people can tell you apart.
There are six. Each one has a topic on its sign and shows how many people are in it.
You type. Everyone in the tub sees it. Up to eight people in a tub, so it stays a conversation.
Nothing is saved on screen. When the tub empties, the conversation is gone.
Every tub is one conversation about one thing. Read the sign, see who is in, get in. Three are free for good. Three go behind the Park Pass later, because the personal ones work better when everyone in them is there on purpose. The tubs are in the park.
The Rober runs the park. Get in an empty tub and he is already there, and he will talk to you until someone else shows up. He is a computer. He will say so if you ask.