Overdriven pulley how much is too much?

This is where book smarts and theory crash head-on with actual experience and reality .
In theory by the smartest folks on the planet, in their field, thought the Stage seal was good, the Challenger's crew experience proved different .

Uh, no. The engineers on the ground knew the seal was susceptible to failures with cold temperatures. They made their concerns known, and the admin types up the chain didn’t call the launch because of all the media attention. The “smartest folks on the planet” wanted to scrub that launch.

Trying to use that example perfectly demonstrates how you can look dumb if you make assumptions about things without actually understanding them.