Fruitless
When you cut someone off (or fly past someone) only to meet up with them at the light.
When you workout all week only to binge your way to oblivion over the weekend.
When you buy a fancy watch to impress your friends and no one notices (or cares).
When you spend a day, a week, or a year mindlessly consuming information, checking off tasks, hitting inbox zero, watching the news, or playing (finite) games, only to have nothing to show for all your work.
Avoiding futile pursuits is how we make space for and invest in efficacous ones instead.