well Satoshi himself have said that in future the price of btc have only 2 chances it will skyrocket or it will be worth nothing so this assumption of the professor have in my view 50% chance to be happened.
In other words, Bitcoin is either going to succeed or fall and become completely redundant. If that's the main logic, then it applies to basically everything in our economy. I think in current times we can safely say that a complete fail is no longer part of the question anymore. The demand will keep increasing throughout the years, but in some cases the growth might not be similar to the previous year, and that's something every market deals with periodically. It's something people need to understand and accept --markets can't increase with 500-1000% every year, that should be clear with a basic level of market understanding....