In the past; it was necessary to seed overall-lies with specific-truths - indeed, the most effective forms of dishonesty were mostly-correct, but with a few key falsehoods that made all the difference.
But when basic assumptions are false, there is no limit to the scale of dishonesty; and nowadays assumptions are false - so we have a situation of unlimited dishonesty: the Total Lie.
Examples abound!
The birdemic is best understood as a Total Lie. From bottom to top, in terms of its 'facts' and their interpretation - it was essentially a complete falsehood.
CO2 Climate Change/ Emergency-Global-boiling is another such. It is based upon false observations, manufactured theories, nonsensical inferences - to make-up a tapestry of such utter nonsense that one stands awed and aghast.
The Fire Nation war... It is clear that the 'understanding' of nearly everybody in The West is utterly-made up, a virtual war, completely disconnected from reality.
The antiracism agenda, the feminist agenda, the whole diversity/ equality/ inclusion/ equity business... Where can one even begin to discuss such a tissue of malignant drivel?
It seems that the combination of a totalitarian and multinational tyranny - with all significant governments, institutions/ organizations and corporations linked-bureaucratically; and with a vast and growing mass-social media - leeching attention, controlling and coordinating human minds; has led to a virtuality - a Total Lie which most people inhabit most of the time; rooted in cycles and elaborations of false assumptions, fake fakes, and incoherent concepts.
Corrective feedback no longer happens; since common sense based upon personal experience and observation is is regarded as a kind of evil, and crushed into non-existence by wrap-round consensus from the totalitarian-media complex.
Ultimately; the Total Lie has become possible because - officially, top-down, and by the assumptions of all institutions - there is no coherence to be had in reality.
Reality is solidly-regarded as nothing-but a mixture of randomness and blind determinism. 'Truth' can thus only be arbitrary and imposed.
Ultimately; people have allowed to be built, supported, then walled-themselves-into, a world of Total Lies; by their rejection of God and the spirit.
When there is nothing-but The System, then The System is everything and (of course!) defines "reality".
So, when it is expedient for those who stand out-with and manipulate The System, to lie about everything, then a condition of Total Lie will become the permanent dwelling place of the masses.