An interface is humane if it is responsive to human needs and considerate of human frailties.

A computer shall not waste your time or require you to do more work than is strictly necessary.

When you have to choose among methods, your locus of attention is drawn from the task and temporarily becomes the decision itself.

As far as the customer is concerned, the interface is the product.

Once the product's task is known, design the interface first; then implement to the interface design.

A well-designed and humane interface does not have to be split into beginner and expert subsystems.

If I am correct, the use of a product based on modelessness and monoty would soon become so habitual as to be nearly addictive, leading to a user population devoted to and loyal to the product.