Final answer:
The usage window on a dead body for Cypher's Neural Theft(X) does not exist outside of the fictional world of the game Valorant.
Step-by-step explanation:
The usage window on a dead body for Cypher's Neural Theft(X) does not fall under any scientific or technological concept. Instead, it is a fictional term used in the game Valorant. Cypher is a character in the game who possesses an ability called Neural Theft(X), which allows him to extract information from dead enemies.
Valorant is a first-person shooter game developed by Riot Games. In the game, each character has unique abilities that contribute to the gameplay. The abilities and usage windows are specific to the game's mechanics and fictional world.
Therefore, there is no factual or scientific explanation for the concept of a usage window on a dead body for Cypher's Neural Theft(X) as it is purely a fictional element in the gaming world of Valorant.