This likely refers to a specific progression or time-based mechanic within the mod pack where players use "hourglass" tools or blocks to manipulate world-state or machine efficiency.

He looked toward his actual door. Under the crack, a faint, flickering light pulsed in time with the video’s hum. He didn’t hear footsteps; he heard the sound of static, like a television tuned to a dead channel.

In the battle for viewer attention, utilizing a "better" expansion method could be the bridge between a video that looks "good" and one that looks truly cinematic.

The "Proper Piece" for TMC FAE DCAY: Why Hourglass Expansion is Better

: Often used in tactical or technical simulations. FAE may refer to "Fuel-Air Explosive" mechanics, while TMC could denote "Tactical Mission Control" or a specific mod/team name.