My 7 year old kid just started playing the game minecraft. He quite enjoyed it, played it a lot and also watched many related youtube videos.
However, he watched some youtube videos about "Entity 303" and got quite scared of it. Wouldn't take shower or go to bed alone. Not playing minecraft myself, I was a bit confused and so did some search on the internet. According to quora, Entity 303 does not exist, it's nothing but a Creepypasta (online scary story).
More details about the Creepypasta can be found here. The story seemingly is that some player met Entity 303 and committed suicide in the real world. I'm not quite sure about it as I don't quite understand all the jargon such as IRL, source code, TNT...
Assume my understanding is correct, i.e. Entity 303 is just a hoax, an online scary story, how could I explain to a 7 year old boy such things, that people like to write such stories, spread them, pretend them to be true, and even make youtube videos about them? -- my kid sort of accepts whatever is on youtube as the truth.