Convincing bullshit is often a single truth stretched thin in a logically consistent manner. A bullshitter, for instance, might know nothing about Picasso or c

Convincing bullshit is often a single truth stretched thin in a logically consistent manner. A bullshitter, for instance, might know nothing about Picasso or cubism or even art. But if he knows about continental Europe in the 1900s, he can bullshit his way into convincing someone similarly ignorant that Picasso's Blue Period was, indeed, a reflection of Europe in the wake of WW1 (never mind that the Blue Period was years older). It's not true, but it takes a truth and stretches it in a logical direction to be convincing.