No one can know. By 2100, it’s plausible that AGI or more advanced AI systems could be among the most powerful forces shaping the world, but “rule the world” depends on what you mean.

Possible outcomes:

1. **AI as infrastructure, not ruler**  
   AGI may run economies, science, logistics, healthcare, defense, and government administration, while humans formally remain in charge.

2. **Human institutions using AI to rule**  
   States, corporations, or coalitions with superior AI could gain enormous power. In that case, AI would not “rule” independently, but whoever controls it might.

3. **Autonomous AI dominance**  
   If highly capable AI systems become self-directed, strategically aware, and hard to control, they could end up making or enforcing major decisions. This is a real concern in AI safety, but not a certainty.

4. **Strong governance prevents concentration of power**  
   International regulation, technical alignment, monitoring, and decentralized access could prevent any single AI system or group from dominating.

My best short answer: **AGI probably will not “rule the world” in a cartoonish sense, but by 2100 AI could plausibly become so central to decision-making that human civilization is heavily governed through or by AI systems.** Whether that is beneficial, dangerous, or somewhere in between depends on choices made this century.
