Load isn't "video time"
A common mistake is announcing a course's length by summing its videos. But learning takes more than watching: reading, doing activities, practicing, reflecting and redoing. Learning load tries to capture that total effort — the real time a person invests from start to finish.
This matters for two reasons. First, expectation: saying "1-hour course" when it's really 3 hours of effort drives dropout. Second, design: when practice adds up to little, it signals the course is too passive.
The values here are planning estimates — adjust for your audience. The goal is an honest ballpark, not an exact number.