1) If most of the "superdelegates" changed their votes, they could in fact nominate Bernie Sanders rather than Hillary Clinton. For that matter, if they just abstained, they could force it to a second ballot, unbinding Clinton's delegates, and then go for an overwhelming Sanders vote.
2) If the Democrats nominate Sanders, they have a chance of winning this November. A slim chance, but a chance.
3) If the Democrats nominate Clinton, their chance of winning this November is close to non-existent at the moment and likely to get even worse very quickly -- presumably there are additional Servergate, Clinton Foundation, and DNC email revelations to come, being held by various parties for release right after the convention to destroy any hopes of a Clinton "poll bounce." She's toast, people.
So: Are the Democrats -- especially the "superdelegates" -- smart enough to pour piss out of a boot with instructions written on the heel? I wouldn't count on it, but one just never knows. And now, over to you, Ian and Darryl: