[lamacase]

By what definition? The "notion" of "justified true belief" WAS the definition of knowledge prior to these complications. Just saying "everything is subjective" is more tedious than making meaningful distinctions, in my subjective opinion

[whytaka]

I think GP means that the justification of JTB by definition is recursive and thus has no real foundation.

To call something 'true' is to know it is 'true'.

If we are bothering to debate whether knowledge is possible, JTB is unconvincing.