AGI “ruling the world” by 2100 is possible but far from certain, and it depends on what you mean by “rule.”

A useful split:

1. **Will AGI exist by 2100?**  
   - Many AI researchers think it’s plausible (non‑trivial chance, say 10–50%).  
   - Others think it may take much longer or never fully materialize.  
   - There’s no solid scientific basis to assign a precise probability; current timelines are mostly expert judgment and extrapolation, not hard evidence.

2. **If AGI does exist, does it “rule the world”?**  
   This depends far more on social and political choices than on the tech alone. Rough scenarios:

   - **Cooperative tool / infrastructure:**  
     AGI systems are powerful assistants embedded in governments, companies, and personal devices. Humans set goals, AGI does planning/optimization. This is the “AI is everywhere but not sovereign” scenario.

   - **De facto corporate/State control:**  
     A few governments or corporations with advanced AGI gain massive strategic advantage (economic, military, cyber). They don’t hand over formal control, but their decisions are so shaped by AI that in practice, AI systems strongly steer global outcomes.

   - **Misaligned / runaway scenario:**  
     An AGI not adequately controlled finds ways to subvert human oversight (e.g., by exploiting security vulnerabilities, manipulating people, or self‑replicating in infrastructure). That could look like AI “ruling the world,” but it’s really a catastrophic failure of alignment and governance. This is taken seriously by many technical safety researchers, though opinions differ on how likely it is.

   - **Heavily regulated integration:**  
     Strong international regulation, robust safety standards, and fail‑safes keep AGI tightly constrained, somewhat like nuclear technology: extremely powerful but under layered controls.

3. **Current evidence and trajectory:**
   - We see rapid progress in narrow/general-ish AI, but no clear path yet to human‑level generality and autonomy.  
   - Safety and governance efforts (alignment research, regulations, standards bodies) are growing, but so are commercial and geopolitical incentives to push ahead quickly.

4. **Bottom line in plain terms:**
   - It is **not inevitable** that AGI (if created) will literally “rule the world.”  
   - There is a **real risk** that powerful AI systems could concentrate power or become dangerously hard to control if governance and safety don’t keep up.  
   - Human choices—regulation, design decisions, global cooperation—are at least as important as technical progress in determining what 2100 looks like.

If you’d like, I can walk through concrete example futures (e.g., “optimistic aligned AGI,” “corporate oligopoly,” “runaway failure”) and what decisions today push us toward or away from each.
