Then nobody wins a majority of electors.

And you know what happens if nobody wins a majority of electors?

No, it doesn't go to whoever has the most electors.

The decision is made by the House of Representatives. The current, Republican-led House of Representatives.

http://www.archives.gov/federal-register/electoral-college/provisions.html

So unless you literally want Donald Trump, Mitt Romney, Paul Ryan, or someone like that to be President, then no, Bernie should not run as an independent.

This is why Michael Bloomberg didn't run, by the way. It wasn't just that he'd split the party, it's that the Constitution itself would likely pass the decision on to the house. If former Republican Michael Bloomberg is bothered enough by the Republicans to pass on an independent run, hopefully Bernie would be too.

He's lost. It's over. He'll be able to make his movement known in the party platform at the convention, and Hillary will go out of her way to make him happy to soothe his voters. But his political career will advance no further.