Fra [video](https://www.youtube.com/watch?v=RjzSFa03i2U): > Pessiland is the world that is good for no one. There are really hard problems, but they are uselessly hard. (...) You can keep attackers out, but at the price of keeping legitimate people out. Fra [paperet](https://gwern.net/doc/cs/cryptography/1995-impagliazzo.pdf): > The world in which there are hard average-case problems, but no one-way functions. Den tredje av [[Impagliazzos fem verdener]].