To create a chatbot with comprehensive knowledge of worldwide information, digital technology, and AI:
1. **Choose a large language model (LLM)**
- Options like GPT-3, PaLM, or BERT
- Must have broad knowledge across many domains
2. **Fine-tune the model**
- Use datasets focused on global affairs, tech, and AI
- Curate high-quality information sources
3. **Implement retrieval-augmented generation**
- Connect model to knowledge bases and databases
- Allow real-time information lookup
4. **Design the conversational interface**
- Natural language processing for user queries
- Dialogue management system
5. **Add multi-lingual support**
- Train on multilingual datasets
- Implement translation capabilities
6. **Ensure up-to-date information**
- Regular model updates and retraining
- Real-time data feeds for current events
7. **Implement safeguards**
- Fact-checking mechanisms
- Content moderation
8. **Deploy and scale**
- Cloud infrastructure for global availability
- Load balancing for high usage
Remember to follow ethical AI principles and respect user privacy throughout development and deployment.