Remember When HBO Said Game Of Thrones Could Last 20 Seasons?

There seems to be a disconnect lately between HBO, which wants Game of Thrones to last just seven seasons, and George R.R. Martin, who seems to think the show could last years and years, devoting a couple seasons each to Feast For Crows and Dance With Dragons. But where did Martin get this impression? Maybe from HBO. » 4/02/14 5:47pm 4/02/14 5:47pm