But only for burritos. Pizza's not quite as resilient.

I'm disappointed society hasn't revisited pneumatic tube networks since we got good at packet switching and RFIDs and computing in general.

They're still used pretty heavily in hospitals and they do take advantage of newer technology like RFID for routing.

Separately, there's a very cool startup called Pipedream that does autonomous underground delivery robots that are kind of the next iteration of the concept.