text:  You get energy from the audience. You get focus from the audience. You get immediate feedback from the audience so you know what's working and what's not working. You know which way to go. In the middle of an answer, if you see the audience, you feel the energy from the audience, you know you're on the right track or you know you're on the wrong track and you can correct in real time. By not having an audience there, you robbed Joe Biden of that.