But if you assume that we have created something that is agentic and can reason much faster and more effectively than us, then us dying out seems very likely.
It will have goals different from ours, since it isn't us, and the idea that they will all be congruent with our homeostasis needs evidence.
If you simply assume:
1. it will have different goals (because it's not us)
2. it can achieve said goals despite our protests (it's smarter by assumption)
3. some goals will be in conflict with our homeostasis (we would share resources due to our shared location, Earth)
then we all die.
I just think this is silly because of the assumption that we can create some sort of ASI, not because of the syllogism that follows.
(As an intuition pump, we can hold on the order of ones of things in our working memory. Imagine facing a foe who can hold on the order of thousands of things when deciding in real time, or even millions.)