President Trump has set his sights on defunding colleges, singling out some of the world’s wealthiest schools in what critics say is an attack on academic freedom.

How well are you doing on each of those fronts? A version of this article appeared in the July–August 2025 issue of Harvard Business Review.

The invention of the like button, which today can be found everywhere on the internet, transformed digital advertising and marketing and fueled the rise of the social media industry. While most ...