The singularity is a fun idea, but it will never happen, because although technology has historically developed exponentially, we have reached a point where further progress is becoming harder, because limits of physics.
Obviously the hot thing right now is AI, but even if we nail that, it will not change the fact that there are limits of physics that slow down further progress.
The “nothing more to invent” is an age old fallacy. And not at all what I stated.
Obviously there is still room for lots of invention, but the so called low hanging fruits are getting rarer.
If the goal is a fully automated society where we don’t need to work, we have a long long way to go yet.