He can reduce it if he only does first names. "316 Chrises, 241 Matts, 189 Justins, ..."
At 5 seconds per name that's a bit over 3 hours of constant talking. Not exactly fun, but not really screwed either?
True as of now, but the drive still has 25 days to go...
Indeed the # of backers has doubled since my comment so he's up to 6 hours of continuous talking now with 23 days still to go. He might indeed be screwed!