When the Prusa i3 MK3 was released in 2017 ... so the firmware could compensate against thermal drift in the inductive bed sensor, RPM detection on all of the cooling fans, and advanced Trinamic ...
One of the issues with 3D printing is that when a print is done, you need to go back and pull the print off the bed to reset it ... as he decided that his Prusa i3 MK3S+ would print continuously.