When I became a feminist, when the movement started in the late sixties, I started writing because I had something urgent to say. My first novel, Memoirs of an Ex-Prom Queen, is the product of that urgency.

As I experienced life on the island, without electricity, plumbing or telephone, I thought it was important to show that people can live as I did without dying or falling apart. I wanted people to understand that we don't need everything that our culture tells us we have to have to be satisfied.

Ever since Freud, being alone has been considered something of a psychological failure. The point, according to Freudian theory, is to be able to love and connect. But I don't believe that at all. I think that being alone and being coupled and being in a group are all natural states in which people can thrive.

I think you get mentally ill being homeless. Most of the bag ladies wind up mentally ill pretty quickly - what people would call paranoid - because they are in such danger. I don't know if it's really paranoia because they are in great danger. Terrible things happen to them, and they lose everything. How could they not become at the very least severely depressed?

The movement for women's liberation was about an emotional transformation, an explosion, a feeling all over the country that things must be different, and ideas about how they should be. I think fiction can capture that kind of thing better than other genres because in fiction you can explore the feelings of your characters - the before and the after.

For two years I watched my parents' lives wind to a close. This made me aware of old age as a one stage, the final one, of a long journey.

One important part of historical recording is to get people of another generation to understand the feelings, the passion that went into social transformation. That's why oral history is so valuable.