AA says it is "not organized in the formal or political sense", and Bill Wilson, borrowing the phrase from anarchist theorist Peter Kropotkin, called it a "benign anarchy". In Ireland, Shane Butler said that AA "looks like it couldn't survive as there's no leadership or top-level telling local cumanns what to do, but it has worked and proved itself extremely robust". Butler explained that "AA's 'inverted pyramid' style of governance has helped it to avoid many of the pitfalls that political and religious institutions have encountered since it was established here in 1946."