Why my three-ball juggling is improving

Back in the day, when compiling and linking C programs took a couple of minutes, everyone in my company was able to juggle three balls competently. A neurologist I met found this interesting - she said it was a deliberate exercise of a different part of the brain.

Then for a few years computers were fast enough that there wasn't time to juggle.

Now, Apple's Xcode and Swift are reintroducing the need for juggling. The AppStore requires screenshots in multiple formats. Kudos to the fastlane.tools for snapshot, which automates it. But it's not exactly instant. Here are screenshots from the beginning and end of the process:

8 minutes and 10 seconds, for one screenshot across six devices.

Or maybe Apple just want me to buy a faster Mac?