What makes stacks different from other bitcoin scaling solutions?
Could you elaborate on what distinct features sets Stacks apart from other proposed scaling solutions for Bitcoin? Do its decentralized apps and smart contracts offer a unique advantage over Layer 2 protocols like Lightning Network? How does Stacks' integration with Bitcoin's native scripting language allow for more flexibility and scalability? Is its use of Bitcoin's security model a significant factor in its differentiation, and how does this enhance its reliability and trustworthiness? Furthermore, what are the key challenges that Stacks faces in competing with other scaling solutions, and how does it plan to overcome these challenges?