*playing the Mastodon adventure game*
*approaches a mysterious door in the wall*
*extends the key before me, and fits it into the lock*
*the wall suddenly drops into the floor, tearing the key out of my hands and dropping out of sight below my feet because a new door has spontaneously loaded and is moving in to take its place above*
Cybrespace is an instance of Mastodon, a social network based on open web protocols and free, open-source software. It is decentralized like e-mail.