We haven't even started with a lot of things were we need a lot more compute:

Your real personal agent which knows you and helps you like "good morning elmer2, your calendar invite for dinner is today, you will need to leave at 18:18 if you want to use your normal public transport route per train. I put an alarm in your phone for you"

Agents to agents

Agentic teams.

Finetuned models for everything like Java/spanish coding model.

Very long term research like multiply hours or days or weeks and plenty of these in parallel.

This is going to sound a bit facetious, but I'm almost certain the Gmail / maps integration on my Samsung galaxy in 2014 did that.