Unfavorable Semicircle is a defunct 2015 YouTube channel that garnered attention due to the high volume and unusual nature of the published videos, usually featuring distorted audio and graphics. The channel was suspended in February 2016 shortly after the BBC reported on the channel.
Over the years, many theories have been formed about the nature of the project. Some of the most popular ones were that the channel was a number station, an alternate reality game, or a test channel looking for exploits.[1][2] In June 2022, after several years of inactivity, the anonymous creator broke their silence and revealed that the channel was an outsider art project.[3]