I was walking on a server the other day and i saw people with Herobrine skin. So that got me thinking. Is Herobrine real?In the source code there are no references to him and definitely the codes don't have the code acts of him. The terrain generator dosn't have the input of redstone torches or 2 by 2 tunnel ways randomly. The people who say they see him could have a mod and just pretend they do. The only way for Herobrine to appear in up to date minecraft is for mods or plugins. The placing of signs or random structures could be on a multiplayer world or the people are placing them before recording.

People can easily make texture packs with a paintings or blocks disguised as him. The images are easily photoshopped and pasted on pictures thats why you see way more herobrine sightings in pictures not videos. People claim him as Notches dead brother but that may not be true. Notch admits that he didn't input him to the game. Also at the end of almost every update there is a "Removed Herobrine". This is thought to keep the players not worrying about him appearing in their worlds.

Don't be fooled of what people say or what you see in single player worlds. If you ever see a deformed tree or random things in is most likely terrain generation error in the codes. Movement at the corner of your eye is probably a mob or terrain generating. Like i said terrain messed up is coding gone wrong but don't worry its not screwing up your minecraft.

So don't let people mislead or fool you but if you do see something strange its a terrain error or you have done somehting to your code to mess it up.