One well-known example is electricity usage, where the Jevons paradox explains how making appliances more energy efficient can backfire by stimulating demand.

If the theory of everything exists, it necessarily has to be self-caused, otherwise it will be merely a partial theory; but the mathematical definition of everything is undecidable, no single set may hold its supposed components, thus the theory of everything by definition does not exist.

Most of the pseudopatients were falsely diagnosed with mental disorders.

[…] to be set up in Indonesia with a phony book and school supplies company established in New York City as a backstop.