It's too far to predict btc position in 2030. But I think there will be many things happen with BTC from now on till 2030. And I think supply will caped if BTC still survives.
Wow launch a prediction in 2019 is very big, but I think there are many things to rescue, the first is that the technology will have advanced a lot, this is convenient for Bitcoin, because it may be that much of that technology is based on blockchain, what which, turns out to be something impressive and very good for bitcoin.
I think if it will continue to be bitcoin, maybe it will have gone through other stages of the market, maybe it will be much more difficult to get bitcoin because its price is getting higher and therefore it is more difficult to acquire, I think the FIAT money will be managed in conjunction with bitcoin, that is, there will be more adoption of bitcoin by people, I think the issue of regulations and taxes will end for those years, because the economy will continue in a great direction towards the decentralized generating much more success , I think that banking will decrease greatly due to all this technology.
The truth is I am very hopeful that bitcoin will be the leading currency with the highest commercialization, after FIAT, due to its confidence in the support that it can offer, with greater support for gold.