When I hear class mobility, I think moving categories, not moving up and down in your own category.

I believe strongly that people need to be rewarded for getting out of bed in the morning and doing something productive. I fear the UBI because I think its human nature to choose to do nothing. I think people who claim people will still work on a UBI are kidding themselves.

So in context, I believe it's important that everybody's material wealth is going up. We don't need laws that somehow make it easier for you to go from nothing to a billion dollars somehow.