The spikey thing was done in a 3d program, someone took a rendered image of it, and photoshopped a bunch of filters on it. Not hard.
Actually its true, i was looking for pictures to put in my school slideshow and i found a site telling you step by step how to do that. Go to google and type in "abstract" there is a link there on the first page i think it is that will send you to the site.
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