Why does E=mc² and what does it mean?

This is a great question that many people ask!

Here's my explanation:

The key thing to understand is that this concept builds on fundamental principles. Let me break it down:

1. First, you need to understand the basics
2. Then, apply the concept step by step
3. Finally, practice with real examples

Example:

// Here's a practical example
function example() {
  // Your code here
  return result;
}

Key takeaways:

• Always start with the fundamentals
• Practice makes perfect
• Don't be afraid to ask questions

Hope this helps! Feel free to ask if you need more clarification.