Owl: Hi! How are you doing today?
Today, I'd like you to design a social media feed similar to Instagram or X.
Imagine users can create posts, follow other users, and open their home feed to see recent posts from people they follow.
As you design it, I'd like you to think about:
• Post creation
• Follow relationships
• News feed generation
• Fan-out on write vs. fan-out on read
• Caching
• Celebrity accounts
You don't need to jump immediately into the architecture. Start by asking me any clarifying questions you would normally ask an interviewer.