Are you being watched?
In the 1980’s (1984 to be more precise), the idea came about to develop a platform-independent graphics system or windowing system. On the open source Unix platform this became the X window system. Release 11 of X (X11) was in 1987. The X toolkit contained a demonstrative program ‘xeyes’ – a follow the mouse X demo – where Xeyes watches what you do and reports to the Boss.
We have come a long way since 1987. Now your browser activity is tracked, Google knows everything about you, the American National Security Association is spying on you, police helicopters are in the sky watching as you walk your dog, and cameras are everywhere.
As a computer scientist working in the field in the 1980’s these sorts of developments were fun. They’re still fun.
Now, where did I put my invisibility cloak?