and we are so dependent on a vaccine for our collective psychology. okay. our collective confidence about moving forward, especially in somewhat of a risky way. that this has to be done right, and you and i, we, have to believe in the process and what we're told. credibility is key. all right. does this new, earlier timeline raise questions? yep. does it make sense to people who do this kind of work? let's get an answer from a real pro. next. ♪