Regarding the predictions for BTC's price, it's important to keep in mind that these are just estimates and not necessarily guaranteed to come true. However, I do think that there is some truth to the idea that BTC's price could see some significant growth in the future, especially if the traditional monetary system experiences a major downturn.

As for Ethereum, it's difficult to say exactly how high its price could go. While it doesn't necessarily rely on the loss of confidence in traditional currencies like BTC does, it still has the potential for growth as more and more people begin to see the value in decentralized technologies.

I would suggest keeping an eye on developments in the Ethereum community and the wider blockchain space to get a better sense of where its price might be headed.

In terms of the difference in growth potential between BTC and ETH, I think it's true that BTC has seen more explosive growth in the past, while ETH's growth has been more gradual.

However, this doesn't necessarily mean that one is a better investment than the other - it really depends on your individual investment goals and risk tolerance. If you're unsure of where to invest beyond BTC and ETH, you might consider looking into altcoin.