should try looking at decentralized and fairly distributed coins bc that's the only way to even attempt security, and not premined centralized tokens, especially anything that is connected to eth - best example of centralization in crypto. rai has plenty of issues ranging from having no security against sybil attack to having no incentives for representatives to do the job or even be honest at all. better than iota, worse than almost every coin design. telegram a great example of centralized project with literally ultimate barrier to entry and permissioned ico right now.