That's only if you login with Facebook to Spotify... Which isn't required.

No, you are mistaken. I have no Facebook account.

Spotify phones home to Facebook the moment the app is opened. This can be confirmed with a no-root firewall like Netguard on Android.

This is why Little Snitch is fantastic.

Especially on the phone where most people use Spotify. Oh wait...

Tell Apple, not me. I’d have written it myself already if such a thing were possible. Special VPNs can do this, or you can just carry a travel router, 4g modem, and usb battery pack velcroed to your ankle, and connect to it via WiFi, so that you can blackhole things via DNS or iptables.

I think you must recognise that you're an outlier.

Yubikeys are great, but perhaps out of scope of this discussion.

I could see smartwatches like Apple Watch integrating well with smart glasses, somehow, in the future.

To be fair, using their clicker/remote rather than Air Tapping makes this much better.

I understand takehome and whiteboard coding of course, but why not system design questions?