This will return the level of nested output buffering handlers.

We draw this set of nested spheres cut away so you see it.

Add a nested bookmark under parent, or a new top level bookmark if parent 0.

Put the Earth at the center of the nested spheres, just because that's where we're making observations.

break accepts an optional numeric argument which tells it how many nested enclosing structures are to be broken out of.

Benoit has been particularly interested in nested patterns, in fractals and so on, where the structure is something that's kind of tree like, and where there's sort of a big branch that makes little branches and even smaller branches and so on.

Beyond undermining the gene centered theories of evolution that have dominated public consciousness for several decades, these developments call for new philosophical frameworks. Traditional reductionist views of science, with their focus on bottom up mechanisms, do not suffice in the quest to understand top down and circular causality and a world of nested processes.

Our need for connection, our need for separateness, or our need for security and adventure, or our need for togetherness and for autonomy, and if you think about the little kid who sits on your lap and who is cozily nested here and very secure and comfortable, and at some point all of us need to go out into the world to discover and to explore.