Mnestics are pharmaceuticals that allow agents to maintain awareness of threats that otherwise erase themselves from human memory. The drugs are used to combat antimemetic entities by enhancing memory and enabling users to perceive or recall information that self-erases.
Humans are not supposed to know that yet. You'll get in trouble with management if you continue doing this.
Finally a rational explanation.
Occam's Razor ... it's the simplest explanation isn't it?
Mnestics are pharmaceuticals that allow agents to maintain awareness of threats that otherwise erase themselves from human memory. The drugs are used to combat antimemetic entities by enhancing memory and enabling users to perceive or recall information that self-erases.
You can also sign a contract with them so you are able to see them. It's all explained in the Hilda documentary series.
William of Ockham confirms
They Live!