This laugh is commonly recognized as Okabe Rintarou's signature mad scientist-style laugh from the anime Steins;Gate, which first aired in 2011. The character's dramatic delivery became memorable among anime fans and spread through clips, remixes, and short reaction edits online. Its staying power comes from how quickly it signals delusional confidence, theatrical intelligence, or ironic evil-genius energy. Even outside Steins;Gate fandom, creators use it as a fast audio cue for overblown reactions and chaotic mastermind jokes.