20:
65:
144:
93:
symbol or a random six digit number, or both, but most lacking a description. The videos often display abstract, pixelated images. In some cases, they show just a single dot in a field of solid brown. Some videos omit sound while some feature distorted sounds. Some videos are only seconds in length,
135:
page named "Unfavorable
Semicircl" linked to the channel. This Google Plus page then led to a Twitter user named "Unfavorable Semicirc" which then led to a backup channel named "Unfavorable Semi cir" which held the original videos and continued to upload new videos, for about 3 weeks until a final
162:
The audio in many videos would also be unnerving, featuring a man saying random letters and numbers, and there would be sharp, shrill sounds with static and randomly generated noise. The videos also seemed to be testing the limits of memory and compression, as it would crash
Android phones and
154:
Upon looking further into the videos themselves, people found even stranger artifacts. Observers quickly found out that if they overlap the video frames, they would make dark, grainy images relating to space satellites, astrology, and even an image of the
Knowledge page about
174:
videos have been seen by many people as the keys to solving the channel's mystery, due to their name and eerie nature. This hypothesis was furthered in 2016 when a Reddit user found that by combining each frame of
118:
has referred to
Unfavorable Semicircle as "YouTube's strangest mystery". Unfavorable Semicircle has also been referred to as "one of the Top 10 Weirdest YouTube Channels". In February 2016, several hours after the
38:
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
163:
Nintendo
Switches, and it would also lag on other devices. The cause of this is yet to be discovered, but it's very likely related to memory issues and compression artifacts.
429:
179:
side by side, a recognizable image open to human interpretation appears, instead of random noise. In June 2022, the project author implied that the image represented the
444:
131:
Since the channel's creation, there have been hundreds of attempts to solve what is
Unfavorable Semicircle. Around March 2017, several observers found a
114:, it is probably "too complex" to be a numbers station, and is also unlikely to be a recruitment puzzle as those are usually announced in some way. The
89:
was created; the channel began uploading large numbers of videos on April 5. The channel continued to post large numbers of videos all titled with the
434:
45:
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
107:
304:
102:
Due to the volume of uploads and the odd nature of the videos, observers started to take notice. Eventually, a small community on
57:. In June 2022, after several years of inactivity, the anonymous creator broke their silence and revealed that the channel was an
414:
397:
140:
which was up for 30 minutes until the deletion and overall termination of most accounts related to
Unfavorable Semicircle.
235:
192:
419:
54:
439:
261:
90:
69:
143:
202:
50:
123:
made an article on the channel, it was banned permanently for reasons that are still unknown as of 2024.
180:
330:
111:
355:
286:
19:
424:
197:
46:
35:
408:
94:
while others are much longer — one completely silent video was 11 hours in length.
207:
58:
388:
132:
106:
formed to investigate the channel. According to computer security specialist
391:
64:
382:
73:
103:
142:
156:
120:
115:
39:
305:"The Unsettling Mystery of the Creepiest Channel on YouTube"
331:"Top 10 Weirdest YouTube Channels – The Strangest Videos"
262:"This freaky YouTube channel invites conspiracy theories"
399:, the subject makes up a large chunk of this article.
394:
27:, one of Unfavorable Semicircle's most famous videos
236:"The Quest to Solve Youtube's Strangest Mystery"
85:In March 2015, a YouTube account with the title
8:
430:Undeciphered historical codes and ciphers
63:
18:
219:
255:
253:
251:
249:
229:
227:
225:
223:
7:
385:, a website documenting the subject.
298:
296:
260:STARR, MICHELLE (24 February 2016).
234:Baraniuk, Chris (25 February 2016).
356:"Unfavorable Semicircle on Twitter"
303:SHILLING, ERIK (22 February 2016).
147:Frame by frame composite image of
14:
445:YouTube channels launched in 2015
53:, or a test channel looking for
329:Dawson, Steve (15 April 2017).
1:
193:Markovian Parallax Denigrate
435:Works of unknown authorship
383:Unfavorable Semicircle Wiki
136:video was uploaded, titled
98:Attention and disappearance
461:
16:Series of YouTube channels
42:reported on the channel.
127:Observations and mystery
415:History of the Internet
203:Alternate Reality Game
151:
87:Unfavorable Semicircle
77:
51:alternate reality game
32:Unfavorable Semicircle
28:
181:Voyager Golden Record
146:
67:
22:
360:X (formerly Twitter)
112:University of Surrey
76:in most video titles
72:symbol, present in
420:Internet mysteries
152:
138:♐ RESET STRANGE YD
78:
34:is a defunct 2015
29:
335:gazettereview.com
452:
440:YouTube channels
370:
369:
367:
366:
352:
346:
345:
343:
341:
326:
320:
319:
317:
315:
309:atlasobscura.com
300:
291:
290:
283:
277:
276:
274:
272:
257:
244:
243:
231:
460:
459:
455:
454:
453:
451:
450:
449:
405:
404:
379:
374:
373:
364:
362:
354:
353:
349:
339:
337:
328:
327:
323:
313:
311:
302:
301:
294:
285:
284:
280:
270:
268:
259:
258:
247:
233:
232:
221:
216:
198:Webdriver Torso
189:
129:
100:
83:
36:YouTube channel
17:
12:
11:
5:
458:
456:
448:
447:
442:
437:
432:
427:
422:
417:
407:
406:
403:
402:
400:
395:
386:
378:
377:External links
375:
372:
371:
347:
321:
292:
278:
245:
218:
217:
215:
212:
211:
210:
205:
200:
195:
188:
185:
128:
125:
99:
96:
82:
79:
47:number station
23:Screenshot of
15:
13:
10:
9:
6:
4:
3:
2:
457:
446:
443:
441:
438:
436:
433:
431:
428:
426:
423:
421:
418:
416:
413:
412:
410:
401:
398:
396:
393:
389:
387:
384:
381:
380:
376:
361:
357:
351:
348:
336:
332:
325:
322:
310:
306:
299:
297:
293:
288:
282:
279:
267:
263:
256:
254:
252:
250:
246:
241:
237:
230:
228:
226:
224:
220:
213:
209:
206:
204:
201:
199:
196:
194:
191:
190:
186:
184:
182:
178:
173:
169:
164:
160:
158:
150:
145:
141:
139:
134:
126:
124:
122:
117:
113:
109:
108:Alan Woodward
105:
97:
95:
92:
88:
80:
75:
71:
66:
62:
60:
56:
52:
48:
43:
41:
37:
33:
26:
21:
363:. Retrieved
359:
350:
338:. Retrieved
334:
324:
312:. Retrieved
308:
281:
269:. Retrieved
265:
239:
208:Outsider Art
176:
171:
167:
165:
161:
153:
148:
137:
130:
101:
86:
84:
59:outsider art
44:
31:
30:
24:
166:For years,
133:Google Plus
91:Sagittarius
70:Sagittarius
409:Categories
365:2023-12-10
287:"♐ANSWERS"
214:References
168:the ♐ LOCK
392:subreddit
61:project.
340:23 April
314:23 April
271:23 April
266:cnet.com
187:See also
172:♐ DELOCK
55:exploits
25:♐ DELOCK
425:Puzzles
240:bbc.com
81:Origins
74:unicode
177:♐ LOCK
149:♐ LOCK
104:Reddit
49:, an
390:, a
342:2019
316:2019
273:2019
170:and
157:art
121:BBC
116:BBC
110:at
40:BBC
411::
358:.
333:.
307:.
295:^
264:.
248:^
238:.
222:^
183:.
159:.
68:A
368:.
344:.
318:.
289:.
275:.
242:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
