That's a bullshit lesson though. You were held back because you made the system and the other kids look bad.

Turning up every day would have wasted your time, because you would have been bored and frustrated.

A good school would have forced you to turn up but would have let you run ahead at your own pace - or maybe moved you to an environment for the gifted.

Talent is rare and useful. Gifted kids should have the same boundaries and support as everyone else, but work challenges should be stretched in line with their abilities.