https://www.theverge.com/circuitbreaker/2017/9/6/16257584/logitech-mx-ergo-trackball-mouse-bluetooth-wireless

The year is 2017, and Logitech is releasing a new trackball mouse called the MX Ergo. Yes, you read that right: the trackball is back, folks.

If you’re not familiar, the trackball mouse is an odd relic of a past computing age, when an actual argument took place as to whether or not it was more effective to move a physical mouse around (i.e., normal mice) or accomplish the same task by anchoring the mouse in place and manipulating the cursor through a giant plastic ball on the side instead.