Including time, added to the three space dimensions there are thus four dimensions altogether in ordinary life. What it does mean is that the links to a work of art that will matter will have to be constantly changing. On the web, anyone can put together an exhibition by building a site containing a set of links to whatever art works they choose, and those links together constitute a new work of art. The exhibition can be permanent, since the links can always remain. But every new combination of works, every new exhibit, can be a genuine art work in its own right.
Stardom can come though just one work, but more often it comes from a whole corpus.
And attention that flows to any star then adds to the luster of each work in that star's corpus, or any other work that links to it, by anyone else. So a curator who manages to exhibit the work of star artists can become a star artist herself by doing so. And any site on the net that gets attention for itself becomes a work of art, and draws attention to its maker. Since the main aim in an attention economy is to draw scarce attention towards oneself, art thus becomes the absolutely essential element of this new economy. Art, created in the moment, created from celebrity, is also the only thing that permits living in the moment and that offers hope of attention - the essence of life itself.