Well, you are apparently one of the believers that if the price raised 10 times last year, it will most likely raise 10 times this year and next.
I do not believe in exponential growth line - just normal markets bull and bear cycles. Now I guess I will be asked again to leave this discussion forum that sometimes resembles more a support group
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The reasoning is not that simple.
It is more like "if the price increased 10 times last year, and if the adoption is still growing while having more room to grow, and if the adoption as a percentage of potential users is still way below 5%, and if there are signs that the next wave of adoption is being prepared in a convincing manner through entrepreunarial dynamism"
then the probability that we will witness at least a 10x increase in the next 12 months is far higher than the probability of a drop of 90% or more of the value. And this is enough to take a rationnal decision in terms of % of your investment portfolio to hold in BTC.
If you cumulate each probabilities that it will rise 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x, etc.... during the next 12 months, and you average it against the probabilities of a drop of 10%, 20%, ..., 60%, ...,90% during the same period. Then you find that reward potential far exceeds the risk of loss. Therefore, there still is an optimum amount of BTC to hold for virtually all investors in the world that is higher than zero.
Right now it makes no rational sense to have any kind of liquid investments (cash, metals, bonds, stocks, ...) while holding 0 BTC. Such a position cannot be defended (or only with sentiments) and prevents the investment holder from reaching an optimum allocation for his risk profile (whatever that is).
I see it as inevitable that at some point in the not very distant future, investment advisers, portfolio managers, funds and other investors will understand this. Such an evolution can only bring the BTC capitalisation to the trillion dollars range. I believe it would happen on its own, even without the current debasement and implosion of the current debt-based financial system. The current slow-motion collapse of the global financial system since 2008 only increases the probabilities in favor of BTC against other investment classes.