Dynamic systems like economies feature positive feedback, negative feedback, and time delays. The longer the time delay, the harder it is to control the oscillations.
@GoZwift the new update makes creating a workout impossible. If you try and use the arrow keys to adjust duration and wattage it just acts like a tab to the next text box or selection option.
@notkylascan You could look into the Garmin Varia. Its a rear light that has motion sensors and can sync to a headunit and show and beep when cars are behind you. I know it doesn't replace the fear of getting hit but it may help ease it.