Today, I saw an invisible expert. In Quanmin, he could be seen typing, but he was not in the online number. In Quanmin's karaoke room,

Answer 1

This plot is more common and is often referred to as the invisible person or the invisible person. It can appear in novels or movies.

In real life, invisibility technology is not common, but in some science fiction novels or movies, invisibility technology may be fictional. In this case, the invisible person may use some kind of invisible equipment or magical ability to hide himself so that he is difficult to be discovered.

The reason why a master who was invisible in the public could disappear from the online population was because he used some kind of blocking or hiding function, or because his identity or background was blocked by the public platform.

In the National Singing Room, the invisible person may sing or play an instrument without being noticed. This was because the national platform usually conducted a certain amount of audit and filtering on online users to ensure that the platform was fair and legal. Invisible people might use some technical means to bypass the checks and filter to enter the karaoke room to sing or play instruments.