The anchor.
Appropriately named, a link to somewhere.
The internet is full of content, but to truly make it a web, it's the links, the threads, these anchors that make it possible.
What is a link that takes you nowhere?
Or a link that's broken—an eternal blue?
A link can refresh, yet the remnants are still visible.
A link can break out of this space—into another tab.
A link can bring me to you (by sending an email).