e.g. I left publishing, tried teaching, and now I've come full circle back to publishing. ...
www.proz.com/.../1625422-coming_full_circle.html - Сохранено в кэше - Похожие

Контекст примерно такой: "Нет авторизации, поскольку нет обученных инженеров. А обучить инженеров нельзя, не имея авторизации. Круг замкнулся!"

Tell me about it!
Я просто к тому, что зачем рыться в ответах с дюжиной оттенков значений, когда можно дать контекст и получить точный перевод или, по-крайней мере, если не замкнуть, то сузить круг синонимов.

See, I told you!

2 black_velvet:
We didn't have to wait till the cows come home, the chickens were first to arrive.

Итого: есть чего consider! Всем огромное спасибо за варианты и дискуссию. Поднимаю бокал за Ваше здоровье и по случаю праздника!

"Vicious circle" originally referred to a circular argument, that is, an argument that assumes the conclusion as one of its premises. That sense was first documented around the end of the 18th century. Approximately 50 years later, "vicious circle" acquired the now more common "chain of events" sense as people began to think of the circle as a metaphorical circle rather than a circular argument. Today, "vicious cycle" is a common variant for the "chain of events" sense. "Vicious spiral," in which the ill effects are cumulative as well as self-aggravating, puts in an occasional appearance as well.

See http://dictionary.reference.com/browse/catch-22
for its definition

"Catch-22

A no-win dilemma or paradox, similar to damned if I do, damned if I don't. For example, You can't get a job without experience, but you can't get experience unless you have a job. It's Catch-22. The term gained currency as the title of a 1961 war novel by Joseph Heller, who referred to an Air Force rule whereby a pilot continuing to fly combat missions without asking for relief is regarded as insane, but is considered sane enough to continue flying if he does make such a request."

That is to say:
"The "catch" is that a bomber pilot is insane if he flies combat missions without asking to be relieved from duty, and is thus eligible to be relieved from duty. But if he asks to be relieved from duty, that means he's sane and has to keep flying."