The accounts collected here are not presented as evidence, proof, or explanation. They are presented as experiences.

Each encounter reflects how an individual remembers an interaction with something they could not readily identify or explain at the time. Some are brief. Some are unsettling. Many end without resolution. Fear, confusion, and uncertainty are not edited out—they are part of the experience itself.

The Third Boundary does not attempt to label what these encounters were, nor does it require conclusions from those who submit them. The absence of answers is not a flaw. It is often the most honest part of the story.

These accounts are shared to preserve moments that stayed with the people who lived them, sometimes for decades, without explanation or closure.