In 2014 he also had written a 368-page novel 'Four Friends'. He says he had little knowledge in software development. So he taught himself more than 12 hours i

In 2014 he also had written a 368-page novel 'Four Friends'. He says he had little knowledge in software development. So he taught himself more than 12 hours initially. I wonder what made him to be so focused and creative, given that he is convicted for life. I find hard to settle for more than 4 hours.