That surely includes his brain-dead effort when he spoke to Morning Joe on the phone. In fact - I wonder how many of these "public events" were ones open to the public where he talked for more than say ~5 minutes. Meet and greets are proof of life but not proof of mind.

Biden called in to Morning Joe today, reading from a script still glitched out multiple times - Hexbear

“I’m reading from a list of lies,” Biden says by phone on MSNBC.