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From the instance you gave I think i agree with you.
I have been trading Bitcoin for years now and I must say I have not made my desired profit, seeing this your write up has made me think of how successful I would have been if I was only investing on Bitcoin than trading it.
Trading of Bitcoin is in two ways which are winning and losing, sometimes you win and sometimes you lose.
If I had invested on Bitcoin for this good number of years I have been trading it I would have had good percent of Bitcoin.
However I'm not saying those that trade Bitcoin are not making it big but investing on Bitcoin will help you have a future investment but trading it will not give you a future investment.
For sure, we cannot necessarily know in advance in regard to which courses of action are going to pay off better, and surely over the years, bitcoin has been a kind of asset that has been valuable to accumulate, so those who have errored on the side of mostly accumulating bitcoin have done better than those who might have been focused on either accumulating dollars are maybe not very clear in regards to the value of accumulating and holding bitcoin, which likely is going to continue to be true... even though also we know that past performance does not guarantee future performance, even though bitcoins investment thesis seems to continue to get stronger.
It's very true what you've said about the unpredictability of investment outcomes, Bitcoin has proven to be quite a valuable asset worth holding on to and people should be fully aware of this fact.
It's also very true that past performances can never guarantee future outcomes, it's worth noting that Bitcoin's investment thesis has continued to strengthen overtime which makes Bitcoin a very viable option for investors to accumulate and HODL on to it.
Market dynamics are not static as they are ever changing and it's very important for investors to always be updated, informed and also adapt to whatever changes that comes along with the market. Those investors who have acknowledged the potential of bitcoin, seen the vision behind it and have taken advantage of the situation by taking a long-term approach with Bitcoin have often reaped and are still reaping the actual benefits of Bitcoin.
The fundamentals of Bitcoin investment is to first understand the value of Bitcoin and using the understanding gathered to make informed decisions concerning your investment.