Notability tag 

Ryulong, re your edit summary here, it is clear that, during the Afd, at least five of us thought that he was notable:
 "Keep , sufficiently notable artist. (...) DGG" 
 "Keep (...) We are creating a free encyclopedia with millions of articles about notable topics. This is one of them. Cullen"
 "Keep, (...) Horvitz is notable under Wikipedia's WP:GNG, (...) Tbhotch"
 "Keep (...) He is clearly notable. (...) Theredproject"
 "Obvious keep. (...) If Horvitz was not notable, I'd happily !vote for delete but it appears he just passes WP:GNG. (...) freshacconci" 
Later, in 2014, The Huffington Post explicitly stated that he is renowned "for his work in the virtual sphere." I am removing the tag for now.