response to Past, Present, and Future Tense

My first reaction to the text was that of confusion.  I am not familiar with the History of multimedia art so a lot of the references they made i did not really understand.  It was hard for me to envision the projects like Robert Adrian's The World in 24 Hours, or the projects done under the name JODI.  I feel like i am supposed to make sense of them but then again maybe I'm not?  I can understand the artwork by Nam June Paik because it's something tangible, something in real space.  I have i hard time with JODI because i don't know how to evaluate it.  What is the criteria for this kind of work?  It raises questions about what I feel is 'art'.  I know that everything these days is 'art' but its hard for me to rationalize some things.  Even right now I question questioning this kind of work!  Maybe it's that i am indifferent to things that don't interest me (as Man Ray would say).  Or Maybe there is some kind of line that determines art making and none art making?  I guess some of us are just finding ways to constantly push that line back while blurring it.  This article didn't really show me anything i haven't heard of or seen but i guess it brought me to face these questions i have about 'art' outside the realm i am used to.  

casey reed johnson

note: i hope this was not too conversational for a response.