That was actually a joke. The real reason not to keep plans open is there are no plans in
the conventional meaning of the word. Let's check:

"  1. A draught or form; properly, a representation drawn on a
plane, as a map or a chart; especially, a top view, as of a machine,
or the representation or delineation of a horizontal section
of anything, as of a building; a graphic representation; a diagram.
  
  2. A scheme devised; a method of action or procedure expressed
or described in language; a project; as, the plan of a constitution;
the plan of an expedition.
  God's plans like lines pure and white unfold. M. R. Smith.
  
  3. A method; a way of procedure; a custom.
  The simple plan,
   That they should take who have the power,
   And they should keep who can. Wordsworth.
  Body plan, 
  Floor plan, etc. See under /Body/, /Floor/, etc.
  Syn. -- Scheme; draught; delineation; plot; sketch; project;
design; contrivance; device. See /Scheme/."

No, I don't think anything has ever been as concrete as that. Dreams, perhaps.
We could share our dreams, I suppose. Really, we just make it up as we go along, I think.

On 15 May 2012 13:19, Christoph Lohmann <20h@r-36.net> wrote:
Secret Plan 9 Secret Secret Society