The document discusses React's reconciliation process and how it works under the hood. It provides a problem demonstration of stack reconciliation in earlier versions of React and a solution demonstration of fiber reconciliation introduced in React 16. The author concludes by thanking the audience and providing their Twitter handle.

1. REACT: UNDER THE HOOD
TANAY PRATAP
ENGINEER, MICROSOFT
@tanaypratap

2. WHAT I CANNOT [RE]CREATE, I DO NOT
UNDERSTAND
- RICHARD FEYMAN

3. STACK RECONCILLIATION (PRE 16)

4. PROBLEM DEMO

5. REQUESTIDLECALLBACK()

6. SOLUTION DEMO

7. FIBER RECONCILLIATION (V16+)

8. THANK YOU!SHOW SOME LOVE ON @TANAYPRATAP