The first round of testing had been extremely long. As he swiped down the screen, the numbers rose from single digits to double digits, triple digits, four digits, and five digits.
Back then, the door had originally been named the "Red Wooden Door." After it had been opened over a thousand times, with the same door always appearing behind it, personnel from the Counterintelligence Investigation Bureau renamed it the "Infinite Door."
At the time, the Counterintelligence Investigation Bureau had little energy to spare for testing the door. When they reached the 10,001st door, they suspended the door-opening operation and completely sealed off the ground floor. The residents on the upper floors were persuaded to leave with government relocation benefits. From then on, the building stood empty, but it was never demolished and remained standing to this day.
That was the file for the first round of safety testing. The second round had been spearheaded by the Special Affairs Investigation Bureau.
"Second round of testing: begin opening doors from the 10,001st door..."
Ke Meng kept scrolling down. Below were endlessly increasing numbers. When the Investigation Bureau reached six digits, they suspended the door-opening assignment and reassessed whether this particular test of the Infinite Door had any point at all.
Opening doors endlessly was not difficult. The problem was that the people opening them grew exhausted, and seeing the same door every time began to affect their state of mind.
Moreover, the more doors they opened, the longer the passage became, and the time needed to deliver food and water gradually increased.
They could hardly let the people opening the doors starve to death inside the passage.
Besides, opening doors was extremely monotonous, and the surroundings were cramped.
Later, the Investigation Bureau switched to using drones to open the doors. Unmanned equipment