Bitcoin is unique, anyone looking for any comparisons to gold, stocks or anything else is on the completely wrong track. There will also always be people who say that Bitcoin is just another big internet scam - it has been so from the very beginning, and yet its value today is such that some large companies transfer part of their cash reserves to BTC - and funds like Grayscale have almost 500 000 BTC in their accounts.
Bitcoin has never been for investors who don’t understand technology, who are slaves to the old system, and for those who are afraid to make changes in their lives.
Surely, it is difficult to capture exactly what bitcoin is, but there are a lot of people who get mislead into thinking that bitcoin is technology, even though it surely uses technology to achieve digital scarcity and sound money in that direction which does make it a bit difficult to understand and also there are a lot of technologically smart people who get distracted into shitcoins and wrongly believing that they are somewhat similar are equal or even better than bitcoin.
We can talk about any ratios here, but we all know that it is not wise to keep all the eggs in the same basket - but I believe that everyone who did not invest in BTC some 5-6 years ago regrets today, and I have no doubt that the same will happen in the next 5 years.
Of course, with bitcoin we can review its price performance history compared to other assets, and the longer that we are able to have created an investment timeline, the better BTC's price performance is going to have had differentiated itself from other assets.
Take
this example of DCA investing of $10 per week for the past 6 years - comparing such investment in BTC to gold and to equities, and of course, the website does allow tweaking of the timeline in order to compare various other investment timelines between 6 months and 9 years.
I agree with you that there is nothing really indicating that bitcoin is not going to continue to have relatively better price performance compared with other assets in the coming 5 years or even longer, so anyone just getting started could take some kind of similar or modified approach to the matter.
The golden rule is that investing in high-risk investments is only what we are willing to lose - all those who do the opposite gamble with a much higher stake, which can sometimes have very ugly outcomes.
Getting off of zero remains one of the best first steps, and also then there might be a need to figure out how much to do, and how to do it and what to do as BTC prices go up (in the event that they do). There are surely ways to deal with those kinds of particulars, including working out some of the details as you go along and build up your BTC investment portfolio, and surely it makes sense to create some tentative plans, but also makes sense to tweak the plans along the way.
So, for example, in late 2013, when I got into bitcoin, my early plans were just to establish "a bit of a stake", yet after I was in bitcoin for about 6 months, my goal became to diversify the overall value of my total investment portfolio into bitcoin in order to reach a 10% allocation in bitcoin, which for me largely meant getting my BTC allocation higher than it was at that time. So, it took me until the end of 2014 before I finally reached my 10% accumulation/allocation goal. Once I reached that allocation goal, then I felt that i had more options, and it made a bit more sense for me to consider various other kinds of plans after reaching that goal rather than planning ahead, because I was attempting to learn along the way. Sure, I am NOT suggesting that my only goal was BTC accumulation in 2014 - but that was the main goal.
By the way, the value of the first BTC that I bought (nearly $1,200) stayed in the red for more than 3.3 years, but since I kept buying all along, the value of my overall BTC portfolio (average of about $500 per BTC by the end of 2015) got into break even territory in about 2 years and profitable in about 2.5 years.
Part of my point is what to do can be adjusted along the way, including planning how to deal with exponential BTC price gains or exponential BTC price drops.. whether to sell a bit when the BTC price goes up and/or to buy a bit when the price goes down or some other strategy, and my personal strategy has been similar to other longer term BTC HODLers and that is to continue to hang onto a decent amount of my stash no matter what the BTC price does, and the value of that has largely had its ups and downs, but overall seems to have trended more towards up rather than down, even if we have experienced long periods of down and flat along the way.
Furthermore, if a person maintains a bit of a balance in his/her various other NON-bitcoin investments, and the value of the bitcoin investment goes shooting up relative to the other assets, so the combination of assets in the investment portfolio becomes overly weighted in BTC, there is NOT necessarily an absolute need to reallocate or rebalance those investments and not just allow the winner (which has been bitcoin) to continue to ride... even if such bitcoin allocation starts to dwarf other assets in the portfolio.
So, for example in my case, I largely achieved my accumulation goal of 10% in late 2014, but since the BTC price remained down and flat for most of 2015, I ended up accumulating enough additional BTC during that time that I had ended up overallocating and reaching around 13% allocation - which had its own ramifications on my consideration of my BTC holdings relative to my overall other investments, and when BTC prices largely shot up from around $250 to $19,666) between late 2015 and late 2017, my BTC allocation got to above 90%, and then when BTC prices dropped back down to $3,124 in late 2018, my BTC allocation ended up dropping to 50%, and currently, my BTC holdings float around 70%.
So the lopsided value of my BTC holdings relative to other assets in my portfolio largely had to do with BTC's over appreciation relative to those other assets, rather than my making any greater investments into BTC - except for that period in 2015 when I had started to gravitate towards overinvesting in BTC beyond my initial 10% allocation authorization amounts.
These remain personal choices regarding how to play these matters, whether to reallocate or whether to allow your winners to ride, and how much to allow for such winners to ride and even maybe scraping off some profits here and there along the way.
None of those choices regarding what to do and how to manage your BTC portfolio will make much if any sense if they are attempted to be made in the hypothetical and the abstraction because in a considerable degree each of us are products of our own circumstances including how much of a stake we have taken and how that stake has played out throughout the time that we have been invested in BTC - including whether or not we are in profits, if so how much we are in profits, and what the remainder of our investment circumstances look like, including considering our cash flow, other investments, view of bitcoin as compared with other investments, risk tolerance, timeline and our time, skills and abilities to learn along the way, plan and to tweak our plans and allocations along the way, including how much time that we are going to engage in trading or other allocation methods in terms of using those activities for managing our portfolio.