An investor has cashed out XRP after holding it for 11 years and has made substantial profit.The investor is now investing in two other tokens: Lightchain AI and Polkadot.Lightchain AI, priced at $0.007 per token, has raised $18.9 million and combines artificial intelligence with blockchain technology.Polkadot is a blockchain platform built to connect diverse blockchains and enable seamless communication and data exchange.