Phlex <[EMAIL PROTECTED]> writes:

> The thing is, now that i have my planet p... i want to change it's age 
> ... and get back the new state of the universe...

It is true, there is often a significant amount of "boilerplate" code
needed to wrap a simple planet-change nested deep within a universe
structure.

There has been lots of research into easing the pain of creating this
outer traversal code - search for "Scrap your boilerplate", "compos",
"Play", "generic traversal" (in conjunction with "Haskell").

Regards,
    Malcolm
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