At the beginning of the pandemic, we did a lot of reporting on how the internet is everything, and how your access to it — or lack thereof — can shape how you learn, how you work and whether you can get ahead in this economy. But a recent investigation from The Markup, a nonprofit newsroom, suggests we’re still pretty far away from equitable access. Marketplace’s Kimberly Adams recently spoke with Leon Yin, an investigative data journalist at The Markup and one of the authors of “Dollars to Megabits: You May Be Paying 400 Times as Much as Your Neighbor for Internet Service.”