XRP has outpaced Solana in market cap, signaling a shift in investor sentiment.Lightchain AI, a coin combining blockchain and AI technology, is eyeing a potential 7,400% gain to overtake Dogecoin.XRP is known for its efficiency in cross-border payments, while Solana is celebrated for its high-speed transactions and scalability.Lightchain AI's presale success and strong investor interest demonstrate confidence in its technology.