Doctorow on the fallacies of prediction (locusmag.com)

They also mention that they do not have a Alphas-only population, because Alphas don't want to do menial work. And then they mention than they also had an experiment, where a lot of machines were used on an island to get rid of menial work, but it did not work, because people had too much free time on their hands.

Why did they not try both together?