this isn't a "real" filibuster because there is no vote pending on the floor now. While that's true, standing on the floor of the Senate and speaking for what is now over six hours is worthy because:

• It gets facts and arguments into the record.
• It gets facts and arguments into the face of people who might not pay attention otherwise.
• It is the best scenesetter for reforming the filibuster to make them actually stay and talk I've seen yet.
• It is an opportunity to spark and stoke some populist anger on the left, similar to the way they've done it on the right.

Update 2: