Speculating on the new Mac Pro's fan noise, rotating cable management, and intended desk location.
FU on John's podcast-scrubber idea. (Spoiler: he knows about the vertical speed-scaling that's been in Apple's scrubber for years, and it's not what he wants.)
Experimenting with new UI controls and behaviors: some end up being cool and useful in practice, but many don't.
Marco's brief adventure in designing a custom binary sync protocol.
The potential conflict of interest of avoiding automatic ad-skipping features in Overcast since Marco gets income from ads on this podcast, and the ethics of publishing all podcasts' subscriber stats on the site.