David Oyelowo

We all have cultural bias, racial bias. One of the difficult things around this subject matter is to deny that we have places we go to subconsciously, and unless you consciously decide that that's wrong and you've got to do something about it, especially if you're in a position of power, it won't change.

If you look at your companies, and half of your staff are not female, and a decent percentage of them are not people of color, then you are part of the problem because you need people working for you and you need people in positions of leadership who can exercise their bias and who can exercise their perspective.

The historical novelist has to consider what has actually happened, while the SF writer is dealing in possibilities, but they are both in the business of imagining a world unlike our own and yet connected to it.