Step 1: Major Challenges in Robotics.
The challenges in robotics can be broadly classified into three categories:
- **Cost:** Developing and maintaining robots can be very expensive due to the advanced technology and high precision required.
- **Safety:** Ensuring that robots operate safely, especially when interacting with humans, is a major concern. Accidents can lead to injuries or even fatalities.
- **Complexity:** Designing robots that can perform complex, dynamic tasks autonomously is a major challenge. Robots often struggle with tasks that require adaptability or understanding of their environment.
Step 2: Conclusion.
These challenges must be addressed to make robots more effective and accessible across industries.
Final Answer: \[ \boxed{\text{Cost, Safety, Complexity}} \]