[gmuslera]

Think in how the Pentagon and CIA shaped movies into propaganda (https://worldbeyondwar.org/the-pentagon-and-cia-have-shaped-...). Now think how something that puts directly information in your brain, without any critical analysis from the one that receives it. Or just plain old advertising or marketing.

There will be market forces to put there more than just the intended knowledge you want. And probably it won't be so easy to debug or clean as with plain text.