3 ms·

How is that passive?

• hambes 5y ago
  Put in work once, get paid over a long span of time in a way that is not proportional to the effort you put in at the start. Like any other passive income.
  • ChrisRR 5y ago
    Except he's working every day over 6 years. That doesn't sound very passive
    • Shugarl 5y ago
      For _multiple_ books. A book he wrote 6 years ago can still earn him some money, without him touching it.
  • jbverschoor 5y ago
    The books are about (versioned) technology. They have a lifespan. It's not like books which which are here to stay for decades