there's also not an infinite number of first time voters. It'd be a nice split to see how many 2016 voters are first-timers from 2008.
I'd guess virtually everybody 25 or younger (born in 1991 or after) is going to be first time for the Dems, unless somebody caucused for the uncontested Obama candidacy as their first time in 2012. That universe seems to be kinda lower than you'd think.
But then again, an age breakdown of the 60% first timers in 2008 seems helpful here and idk if that got split by the surveys.
Eh, there might be some Paul 2012 first timers switching to Sanders. But yeah, you make a good point that many of the 2008 first timers are going to be voting again.
