For sure the expression:  "don't invest anymore than you can afford to lose" has several interpretations, and we might not want to read too much into it - since many of us know that the future is not guaranteed, and an investment can be good , even if its odds of playing out (as planned) are less than 50/50...   We choose our position size on expectations, and yeah once time has passed, then certain scenarios become 100% or nothing based on either they happened or they did not, yet we still did not really know with any level of confidence when we took the bet, or maybe in the case of bitcoin, we are investing $100 per week for 10 years straight, so then after 10 years we have invested right around $52k (that is $5,200 per year), and so we might thinking that in 10 years, relatively acceptable scenarios would be that bitcoin's prices go up 2x or they might go up 10x or more, and sure there are other worse scenarios, yet we are hoping that the positive rather than the negative scenarios play out, but we don't really know for sure... so we choose our position size based on our own personal finances and psychology but also based on our view of bitcoin as an investment versus other places that we could put such value.

Another thing is that if BTC prices go up 10x in 10 years, not all of our BTC has appreciated in price at the same rate, even though perhaps our earliest of investments had achieved the fullest of the 10x price appreciations, yet perhaps our investments in the last 2-5 years might have ONLY gone up 50% or maybe doubled or tripled, so we cannot necessarily treat the whole investment as if it would have gone up 10x, since even though we invested $52k into bitcoin over 10 years, that $52k is not necessarily going to be $520k, but perhaps instead something like $312k and our earliest contributions would have gone up the most, and we can ONLY frontload our investment so much.  Another thing that tends to happen is that income tends to increase, so if we are raising our BTC contribution amounts with the raises in our income (and perhaps raising of our convictions about bitcoin with the passage of time), we may well end up having way more contributions on a dollar denominated way in the later part of our investment as compared to our earlier part of our investment (so we did not end up frontloading our investment), so those later contributions did not have as much time to compound on each other (or appreciate in value) as compared with the earlier portions, so it could well be that a BTC asset that goes up more than 10x in 10 years, our BTC holdings within that account after contributing $52k might be worth less than $200k... there are ways to forward calculate these matter (though filled with uncertainties) and of course, once the time past, we can see how we performed, but that still does not help us in terms of changing the past, yet it ONLY can help us to figure out if we might want to change (or tweak) any of our present practices.

If we don't want to devolve into gambling, we are restricted towards spending within our discretionary income, and yeah we can try to be as aggressive as we are able to do, yet we don't want to overdo it and end up losing BTC because we had overdone it, and we want to make sure that we keep our various relationships in order, which sometimes requires spending some money and contributing to the group rather than being perceived as self-ish and self-centered.  So we have to strike balances in regards to pursuing our best interests but also living our lives in ways that  is not screwing ourselves and/or our relations with others.. whether direct family or otherwise.


You may be saying this with more ambiguity than necessary.

DCA does not eliminate risks, but it instead allows us to set our level of aggressiveness within our budget, so that we would not necessarily be overspending, and we spread our investments into bitcoin within the capacities of our discretionary income. 

Surely the more confidence that some of us have in bitcoin, we start to consider that bitcoin is less risky than a lot of other kinds of investments, including being less risky than holding value in fiat, since fiat is damned close to certain (or inevitable) to go down in value, yet it could take several years for us to perceive how much our fiat had gone down (depending on which fiat we have our value), so in the short term, bitcoin can go up or down relative to various fiats, yet it seems that the odds of bitcoin going up in value relative to fiats has very strong possibilities, especially if we look at 4 years or longer, so in that case, we can choose our bitcoin allocation size and even feel that we are likely in a less risky position in regards to the portion that we are holding in bitcoin as compared with other places that we could place such value, whether in fiat or in other places.  Sure we could be wrong about our assessment of risk (or non-risk), yet we can still come to our assessments regarding what we consider to be a place of having familiarity with what bitcoin is - which is a kind of asymmetric form of information, since there are so many folks who seem to hardly have any clues about what bitcoin is, even though they have heard the word and they act like they know what bitcoin is, but some of the bitcoin "know-it-alls" have not spent more than 10 hours studying bitcoin yet still have an opinion about bitcoin.  Many of us become advantaged by knowing about bitcoin, especially once we might start to get into the area of 50-100 or more hours studying bitcoin, as compared with folks who barely have superficial ideas about bitcoin and have put little to no time into trying to learn about what bitcoin is... in order that they can start to take action to get a stake in bitcoin rather than staying on zero and likely continuing to lose out by their failure/refusal to look into it and their failure/refusal to act to start to buy bitcoin (or alternatively buy bitcoin price exposure).


A person could have an annual income of $20k over many years and perhaps receiving 4% to 10% raises per year, depending on if they get promotions or if they stay in the same job position, and they might be aspiring to get their investment to $1 million or close to $1 million so that they can start to live off of the interest from their bitcoin.  They might consider that they might not even have to get their investment to $1 million and as low as $500k might sufficiently serve their purposes, yet $1 million seems to provide a better cushion, so they are shooting to get to their BTC investment being valuated at $1million (hopefully using the 200-WMA rather than spot price, so they might still be learning about how to valuate their BTC investment), and so if the person spends more than 6 years buying $100-ish per week in bitcoin (which is really in the ballpark of 20% of their income, so quite aggressive), they might consider themselves to be investing into bitcoin aggressively and not to be having very much other income for other recreational or life-style type things.  They are mostly paying the bills and living a fairly frugal life.

After 6 years investing into bitcoin, they have put in $31,200, and they are feeling quite good about that, since they put in right around 1.5x of their annual income into bitcoin, and so if bitcoin has appreciated in those 6 years then they would be even better off.

We can look at the past 6 years, and see that $100 per week would have accumulated close to 2 BTC, and so at BTC spot prices that would be $187k and at 200-WMA that would be $85.5k, so the person can feel quite satisfied with his BTC stacking progress, yet he can still be tempted to tap into his bitcoin, even though he is still quite far from his goal of $500k to $1million, yet if he has no other investments or savings and he had never built up such wealth, he can still be tempted to use some of the money.. and I am not even proclaiming that he should not spend some of the money, even though withdrawing some of the money is likely going to slow down his progress towards reaching his goals.  Even if he cashes out less than 10% (such as 0.2 BTC), it will still take him quite a long time to build back that 0.2 BTC, and ultimately it is his choice to do, and I am suggesting that there are so many folks who get way too tempted into tapping into their long term investment and they end up either delaying their progress, or they really fuck up their whole practice of regularly building their investment.  There is no real right answer, except a person trying to reach fuck you status may well never be able to reach fuck you status if they have such bad habits of regularly (or even sporatically) dipping into their investments and messing up their BTC accumulation progress.