personal truth

[popeye1945]

Experience is true to the biology experiencing the matter. If biology is dysfunctional in some way, the truth experience will be true to the dysfunctional biology for the truth to the individual is experience, while truth to the group is agreement.

[commonsense]

"Personal truth" is just a relabelling of what used to be called (more accurately IMO) "personal reality". Which implied your personal reality could be separate from the truth.

If you replace the word "your," with the words "POTUS Biden's," you will have a cogent, relevant, specific and true example of the implication you mention. Everything he says is a lie, big and small, and this is well-documented. In his dotage it's a reflex, a tell if you will. A tell of the truth.

Ahh, there it is—Walker’s Biden obsession injected into a philosophical discussion.