I can´t find the article again. From what i remember it related the number of coins available to the storage space rented or sold. And arrived to a value in USD. then the value of 89 sats was related to the price of BTC at the time.
What i´m trying to see here is with constant mining of new coins (incrinsing suply) can we expect a real epic monster moon from current prices? Is this good store of value? or more of a good day trade/small profit coin?
I don't think Sia is the coin for you, it is probably best you move on. Investing in Sia now is like investing at the Venture Captial stage, and this risk is not for everybody.