He did explain some of his reasons, which include high-minded motivations. He mentioned putting ego aside and fulfilling his promise from 2020 to be a 'bridge' to prevent a terminal slide into Trump's personality cult. Additional pros and cons of his decision will likely be detailed in his memoir, which will probably reveal a mix of personal calculation, pressure from allies, and other party dynamics factors. It won't be any startling revelation about health beyond the lesson of RBG. If there's one thing I agree with libertarians on, it's that the US President should be seen as a replaceable and functional leader, without any godly mystique. Biden is setting an example.
Eudaimonia, try it! knowing you though... you'll pick the easy parts out of context and toss the difficult ones.
The "difficult" ones? You mean like being a gratuitous asshole, a concept you wholly embrace? You mean like that?
Kamala's odds of winning outright were far better than Biden. You know this. Nobody on the Left wanted him to continue to campaign. All of you were stating that Biden was going to retire in the first year of his first term.