Now we go to the philosophical question of how much is enough
If we calculate an average 38x gain in 32 months, and the calculation is factual, it should have fulfilled itself already.
In its first year, Monero rose 5x, which is 400%, which is about the same that I am now projecting to be the average until end of 2017. Still, the general feeling is that the rise could and should have been faster.
What is keeping people from investing at such outlandish odds? One reason could be the declining marginal utility of money. Let's make an assumption that the reader is a 30-year old person with no family and irregular lifestyle, with capability to earn the living in a normal job.
The total assets are all liquid and consist of $20k of savings. There has never been the motivation to save more, yet the prospect of being penniless is not interesting, so this is the local optimum.
The scenarios are now:
A. Multiply it to $20 million
B. Multiply it to $2 million
C. Multiply it to $200k
D. Retain it
E. Lose half of it
F. Lose all of it.
We assign 100 to be the value of D, the present situation. We earlier calculated the mathematical EV for XMR and found it to be really lucrative. But is it actually so from a lifestyle perspective? People are different, and few have constant marginal utility for money. Paradoxically, the ones who care about lifestyle the most (and claim to be much happier if they had more money), seldom are very effectively working towards maximizing their money! Riches tend to accrue to people who don't care about spending. (Another paradox is that such people may be so unaccustomed to spending that when they do, it is perceived as showy, when the truth is that they are clumsy, and honestly don't care what others think
because spending is not of importance to them.)
To move on with the thought model, however, start from the easiest which is the losing of money. How much did your life suffer last time you lost half of your savings? Most of us did not actually suffer that much, at least not long-term. Perhaps a value of 95 is correct. In this example case, even losing all your savings would likely not affect the long-term that much, because we assumed a young person with an earnings potential and few responsibilities, but it would certainly hurt more than double because of the shock. Let's say 80.
The difficult part is to predict how much the gaining of money improves life. With spendthrifts, it improves very little, as they are capable of squandering even millions in a few years easily. But if we assume prudent finances, it is unquestionable that a positive effect is present and we need to evaluate it.
We assumed that a $10k shortfall translated to -5 quality_of_life points because getting back to the previous level of savings, requires extra work, or less spending, or both, for a time of perhaps a year. Adding $180k would translate to +90 points if the marginal utility were constant in this range. After all, if the money was spent in reduction of work and increased spending over 18 years, it would be a major improvement!
Research says that people get accustomed to a lifestyle in a few months. So in reality, to get the kicks of it via spending, you would need to increase the level gradually until the sum is rather soon exhausted and then you need to go back to work and reduce spending and it was not a big deal after all! I would posit that the larger gains in quality_of_life in this case ($20k->$200k) are actually achieved in those who aim higher, and are not even seeking to increase their lifestyle with the sudden one-time gains.
What if good luck hits you and you get 2 million instead? In my opinion, the difference between $2M and $200k is larger than that of $200k and $20k. In relative terms it is the same, but in absolute terms it is 10 times more, and as the sum of money, it's 1.8 million dollars!
Whereas the previous increase in wealth cannot bring financial independence (at most a promise of it, if you are able to do more good investments), banking 2 million is a completely different thing. It may not guarantee a luxury lifestyle for life in your home country, but very well does it in many places in the world. Or it opens a completely new world of investment opportunities. Once you have earned 2 million, it's easy to earn more (depending on skill of course, but investing in Monero is a multiskilled exercise and proof of it). If your wish is to make the world a better place, you anyway do it mostly with your time, so not needing to work increases the effect greatly, and having the option to spend sums of money to make the effect greater, amplifies it. So regardless if the intent is to spend the money or invest it, if you do it prudently, 2 million is a lifechanger.
In case of 20 million, well, I have to admit being there for such a passing moment that I cannot really speak from experience. The worries of not having enough will be transformed to the constant threat of legal and tax actions against you, and wealth managers eat their share annually, unless you are willing to manage it yourself, in which case it is a full time work. The spenders enjoy a much more extravagant lifestyle of course, and the people aiming to do something meaningful have increased resources to do so, but not any more time in their hands. My overall estimate is that the benefit from moving from 2 to 20 million is less than that of the previous move.
So, to quantify, let's use the following figures:
A. Multiply it to $20 million = 650
B. Multiply it to $2 million = 400
C. Multiply it to $200k = 150
D. Retain it = 100
E. Lose half of it = 95
F. Lose all of it = 80.
Then apply the XMR scenarios to this much reduced scale of quality_of_life_EV:
A. 1% * 650 = 6.5
B. 4% * 400 = 16
C. 11% * 150 = 16.5
D. 23% * 100 = 23
E. 0% * 95 = 0
F. 61% * 80 = 48.8
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average 110.8
The average corresponds to the quality of life increase of about doubling your money from $20k to $40k in 32 months. So there is a price to pay from the extreme variance in expected returns. A 38x increase in the mathematical EV is only a 10% increase in quality_of_life_EV, which corresponds to the benefit of doubling your money!
I did not know the result when started writing (novel research does not know results beforehand).
This might be a tool that has potential. With some tuning of the numbers (especially if we constructed a continuous event scenario instead of fixed price points), we could easily see that for the person with these attributes, investing only half into XMR is preferable to investing 100%. This caps the maximum downside to 5 points. Since the night is still young, we might as well do it.
The new positive scenario outcomes are divided by 2, and quality_of_life points modified accordingly. The percentages are kept the same:
A. ($10M) 1% * 580 = 5.8
B. ($1M) 4% * 300 = 12
C. ($110k) 11% * 130 = 14.3
D. ($20k) 23% * 100 = 23
E. ($10k) 61% * 95 = 57.95
F. ($0) 0% * 80 = 0
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average 113.05
While the outcome does not look impressive, the result of +13.05 compared to +10.8 is 21% better!
Another thing that easily improves the results is the periodic selling when the price rises. Temporary rises in price are quite prevalent in altcoins, and small increases in absolute wealth tend to always bring greater absolute benefit to the quality of life compared to larger ones. (This lemma, that the marginal utility of money is always decreasing, is well known to not hold true in isolated cases such as trying to purchase a plane ticket to flee from calamity - the last dollar needed is the deciding one - but is supposed to hold true in all general cases; nevertheless you can use the model even if you are not general.)
Also the emotional thrill of having a prospect of a different lifestyle vs. the emotional avoidance of possible changes plays a role. This was opened up in a previous post already with my lamentation that people sell at a loss or after a small gain. The psychological driver behind that might be unwillingness to accept the change in the social position, which true enough can be avoided by refusing the gains. For these people, investing can be compared to playing a slot machine - it gives the thrill of playing and sucks up the excess money not needed in consumption, but does not rock the boat by forcing a lifestyle change.