Encryption Works! Fight surveillance!

Chat with Signal; browse with Tor and https; disable javascript and cookies; encrypt your cloud storage (dropbox, etc.); boycott products (gmail, skype, etc.) that are based on privacy policies rather than end-to-end encryption; shutter FB; become a cryptographer and design anti-surveillance tools; smash your tracking devices (cell phones); voice your rights; march on Washington.

In category theory, as in life, you spend half of your time trying to forget things, and half of the time trying to recover them.