Ok, as I'd really like to teach ConTeXt with font switching :)
I repost here a real important question IMHO, solemnly promising to  
wikify the answer:

> Could anyone comment this famous piece of code?
> http://wiki.contextgarden.net/Mark_IV#A_.28Complete. 
> 29_Typescript_Example
> I'd like to add infos to the wiki
>

Thanks and best

-a-

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Andrea Valle
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CIRMA - DAMS
Università degli Studi di Torino
--> http://www.cirma.unito.it/andrea/
--> http://www.myspace.com/andreavalle
--> andrea.valle@unito.it
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"
Think of it as seasoning
. noise [salt] is boring
. F(blah) [food without salt] can be boring
. F(noise, blah) can be really tasty
"
(Ken Perlin on noise)