[REBOL] more context clues Re:(2)

[Galt_Barber]

Just when I thought I understood context,
e.g. each function has one, I read this:

>> a: 1
== 1

>>block: [a]
== [a]

>> use [a] [  a: 2   insert tail block [a]   ]
== []

>> block
== [a a]

>> reduce block
== [1 2]

well, I guess that words have context all by themselves.
so much for progress.

-galt