You've definitely used dry-erase markers to mark up a whiteboard in a classroom or at the office—they’re so ubiquitous, they’re even replicated in apps that allow you to keep a whiteboard in ...

If you’re carrying around an exposed circuit board and a bunch of wires people are going to notice you. But a dry erase marker won’t turn any heads. And this one holds its own little secret.

Giannis Antetokounmpo maximized every second of that chance to communicate by immediately getting his hands on a whiteboard and dry erase marker to point something out to his teammates and coaches.