Basically everything? The reason most jobs are so hard to automate is the lack of dependencies having API's you can work against. If we had a billion engineers

Basically everything? The reason most jobs are so hard to automate is the lack of dependencies having API's you can work against. If we had a billion engineers they could automate probably 90% of white collar jobs we have today simply by throwing human brute brain force at all edge cases. And you know, doing all that labor would definitely be worth it even though it sounds like a waste. That is why software engineers are paid well, and why they will continue to be paid well for a long time forward.