what if you make screw up like I did 
the other day and kill one of your critical 
key functions.

e.g.

first: "oh, well, it's only a vital rebol word!"

now, I can't get to the original value of the word 'first
to restore it.  It is a native, and even if I 
run another copy of rebol.exe to check out what it was 
set to, I still don't know if there is a way to set it back.

Usually, it wouldn't matter, I suppose.
But occasionally you may be in the middle of 
something you don't want to lose.

Is there any way to recover?

-Galt

p.s. I tried this, but it didn't work with a lot 
of functions, including source or help which use first.

first: func [x][pick x 1]

I guess first is heavily overloaded.
I think it works differently with ports, too.

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