This terminology is common in digital media or hardware contexts (e.g., high-definition video or exclusive content), but it has no standard definition in economic theory or academic writing.

"Run it again," Marcus muttered, his hand hovering over the spacebar.

"HD Exclusive," Marcus read the text burned into the top corner of the file. "High Definition. High Deviation. That’s what it meant to the old archivists. High Deviation from the standard timeline."