For centuries, typography has shaped the way we ‘hear’ what we read. In our web work, though, we've had to balance our typographic desires with user experience and performance, knowing that every weight, width, or style of a typeface required a different file download. Variable fonts change that. Now, beautiful web typography can be crafted to respond to screen size, language setting, even ambient light. More than just a better version of what we had before, this new technology will challenge our notion of just what _is_ good typography, and how it can push the practice forward in ways never before possible.