Below are the topics covered in today's mini-episode (with timestamps). For instructions on submitting your own questions, go to calnewport.com/podcast.

 - On the value of expensive productivity systems. [3:58]
 - Phantom part-time jobs. [11:16]
 - Working deeply after hard days. [16:24]
 - Must all leisure be quality? [28:27]

Thanks to listener Jay Kerstens for the intro music.