The fact that many people want to record videos with their glasses is a firm belief of Meta boss Marc Zuckerberg. However, it is difficult for him to dismiss the fact that many other people have no desire to be filmed by others. So if someone wants to film with the Meta Glasses, they automatically turn on an LED light to warn people in the area. The aim is to make life a little more difficult for stalkers, peeping Toms or secret service agents.