I'm explaining to the people downvoting that the cartoon man in this meme is from a show written by the man scottmeme is linking to on youtube. And the phrase, "Reality is an illusion, the universe is a hologram, buy gold, bye!" Is a common meme from that fandom (and said by what is probably my favorite villain of all time.)

That's Alex Hirsch. He made Gravity Falls. He voiced Bill Cipher. He also voiced King on Owl House.