[nunuvit]

So teach them to check the power and the paint will help them realize when they forget to do so.

[rpearl]

what precisely is wrong with visual feedback?

[nunuvit]

Nothing. It's great. But it's the wrong tool for the job. Like teaching someone to stop a car by using the speedometer to estimate when to let go of the accelerator pedal, instead of introducing them to the brake pedal.

[rini17]

You are supposed to study datasheets before you start a car?

Please. There's nothing wrong with "hands-on first" approach. And the tortured metaphors completely kill your argument...

[nunuvit]

It's too late to edit my original comment. I was responding to the part about when you're breaking a lot of stuff all the time.

Checking limits is for preventing breaks. Visualizing heat is for troubleshooting when they happen anyway. You should do both.