Come on man. This is blue MAGA stuff. He struggled to put together coherent sentences during the debate. He looked frail. He struggles late at night, IE when the next debate will be.
This election is too important to have a candidate who can't make arguments against Trump, inform the American people about Project 2025, or show any vigor. This has to be a campaign dedicated to multiple events a week, multiple media appearances, vigorous debates, etc. Everything needs to be left on the field. I haven't seen anything to suggest Biden is that candidate.