A question about SUI

I've been looking at SUI as a possible purchase. I asked a simple question in their sub and haven't received an answer and have also been attacked by a couple of the members for asking the question.

My question is about the tokenomics. The circulating supply right now is 3B but max supply is 10B. I have seen their tokenomics roadmap and it only shows less than 5B being released over 7 years. Does anyone know where the rest of that goes? Do the devs own it? Just with the info I can find, I'm not sure why anyone is excited about it, but I honestly would like to know. I've seen a lot of people talking about SUI so I'm just trying to do my research before I would invest. I'm just looking for a simple answer, not an argument. Thanks in advance.