a perfect secret-keeper's information flux boundary is also a memetic diode; memes go in but don't go out, besides under very specific conditions
mostly nothing is a perfect secret-keeper, the diode being probabilistic. this applies to people, organizations, and deathtraps
antimemesis is a property describing a system's ability to restrict the memetic flow across its information boundary
antimemes are memes which induce this property in memetic hosts they reside in, to a varying degree depending on their antivirality
their R-naught is negative