How about the total supply? 1.5 billion ?I am confused.
What are you confused about?

Maybe this is too big supply as per question it seems he is asking about is there any chance to get reduce the supply by increasing the price of token like if price will be $0.1 than it will cut off 10x.
There are a lot of coins / token with the same supply.
But this is a total supply.. not the circulating supply (mostly not all tokens are sold)
I'm guessing the total coin supply will not be pumped into circulation all at once like that. Might be annual percentile distribution