Dr. Jan Gorzny, Web3 expert, discusses why layer 2s are crucial for onboarding a billion people into web3. They explore the role of layer 2s in scaling blockchain, the importance of investing in L2s, and the challenges of maintaining security while scaling. They also discuss the scalability of L2 solutions for Ethereum, different types of tokens and their functionalities, and the significance of being oneself and nice when expressing opinions on social media.