Anticipation
Timing · 2 / 4 / 6 min
What you do
A marker runs toward a line. Click when you think it arrives, including after it has gone out of sight.
Why it is useful
Judging when something will get there is cab work. Too early and too late both miss. The hard version is continuing the motion in your head when you can no longer see it, including after a stop or a reverse.