The Infinite Number of Methodologies in Software Development

The question, dominant question I used to anchor the dissertation was, is it possible that there's one ultimate software development methodology? Either there's one, or there's an infinite number. And at the time I had been recommending every project needs its own methodology,. You cannot have one. Don't even think about it. A global corporate, global methodology cannot work. We'll not function. So methodologies should be like tissues - you blow your nose on them and you throw them away.