Objective way of detecting actual AGI
Just thought about it. The simplest, yet very precise way of detecting if AGI was actually achieved, is not using some benchmarks, because those are quite easy to be cheated on.
The only thing you need to see is if all, or at least most companies in the software development sector, (or even more generally, and a thougher challenge, all companies) fire their employees and replace them with that AI.
When they do it, it means AGI was officially achieved.
If not, though luck, we're still not there. Simple as that.