Hi,

The WRITE command, when passed no argument, does a reflexion on the system. I am not particularly interested about WRITE, but  I want to learn how to do self-reflection on the system, to find out the system status, and for this the best source of inspiration could be the system itself.  Apart from that, the source code of the system could be a source of inspiration for my own programs as well...  Something like that Lisp or Smalltalk programmers do all the time...