Steganographic overlays are a thing, and look set for wider use as vile regimes tighten their grip. But they are slow - fine for text based reporting, egress o

Steganographic overlays are a thing, and look set for wider use as vile regimes tighten their grip. But they are slow - fine for text based reporting, egress of intelligence, protest coordination, or the dissemination of smaller videos maybe, but not meeting the expectations of a generation raised on interactive media.