I must have missed those press conferences. I have yet to see Biden drool or fall asleep. Unlike Trump, he doesn't lose his train of thought and start babbling incoherently as Trump often does. Joe may occasionally stumble over his words or struggle to get them out from time to time, but that's due to his stutter, which I honestly had no idea about until this campaign.
Having observed both men, Trump is frighteningly abnormal in his behaviours and displays a LOT of early signs of dementia, of the violent aggressive kind. Paranoia and fear that everyone is out to get you, and lashing out at your "enemies", real or imagined, is standard behaviour for dementia patients. Plus his belief that he won the election, and it was stolen from him.
Yeah, keep telling us that the fat, old man in Mar-a-Lago plotting to overturn the election results and make his comeback to the White House while primarying every Republican who voted to impeach him, is the sane rational guy. Especially considering that there is no way, Constitutionally or legally, for this to happen.
When in office, Trump could only focus on one thing at a time, which was merciful, because he made everything he focussed on much, much worse - trade being a case in point. America's trade deficit increased by $200 billion under Donald Trump. Border crossings are at their highest levels in decades, and the economy is crashed - these are the three things Trump focused on. And his re-election. And he failed at all of them and left a mess for Biden to clean up.