Easiest way to experience teleporting is to go to this site. When the map loads, select any dot on the map and it will open a pop up showing the active chat and give you an option to “open chat.” Once opened, you will see an alpha numeric code aka a Geohash I’m the top left. This designates the deemed location of the chat.
Now open Bitchat, click mesh in top right, then type that code in Geohash blank and hit the teleport button. It will take you to that chat in Bitchat. When you select the chat, it tells you the Geohash. You can also start your on chat by typing a Geohash that doesn’t have to be your actual location. For instance if you type 9rb in the Geohash and hit teleport, you will start a chat in Eugene Oregon.
This map that shows you all active chats as well as a world view with location.
https://bitchat-world-view.vercel.app/
Lastly 21m is a chat Geohash established and used my Jack Dorsey in the beginning.