In "The Witness", how many lasers must be activated to get into the mountain area?

In the movie "The Witness," seven lasers must be activated to gain access to the mountain area. This number is determined by a combination of factors such as security measures, detection systems, and possibly the complexity of the overall security system design. These lasers likely serve as a critical part of the defense mechanisms to ensure that only authorized personnel can enter the mountain area. Activating all seven lasers would likely disable or bypass the security measures, granting entry to the restricted zone.