In my opinion, no single design is apt to be optimal for everyone.

Attractive things work better.

A big ethical question is what happens after people stop using the device. Does it degrade the environment? Could it have been designed so it would actually be good for the environment?

Forget the complaints against complexity; instead, complain about confusion.

The current paradigm is so thoroughly established that the only way to change is to start over again.

Products were once designed for the functions they performed. But when all companies can make products that perform their functions equally well, the distinctive advantage goes to those who provide pleasure and enjoyment while maintaining the power. If functions are equated with cognition, pleasure is equated with emotion; today we want products that appeal to both cognition and emotion.

So what does a good teacher do? Create tension - but just the right amount.