Someone ask me a question after introducing bitcoin to him, if he can start up with $30 and grow with it but I told him bitcoin is wide and high in volume, price and market, that's means whatever you're starting with determine the outcome of the market like for example; if you start with $30 and eventually the market goes up to a little increase of $32 can not be compared with someone who started same time with you, at the rate $100.
So also when the market is down to some extent, the person with $30 may likely loss more because of the money is small. Blockchain has the minimum amount one can invest if am not mistaken but if your amount is too small may be difficult to make easy progress.
What do you think about my advised to him?
That's when leverage kicks in. And it is an advantage of cryptocurrency because it is easily accessible on different platforms such as centralized exchanges like binance. With his $30 he can leverage it into 2x-100x and make a grandeur return. HOWEVER. Leverage is a double edge sword. As much as it is fast to double your money, it is also fast of taking your funds away from you. Your funds can be gone or can be multiplied in seconds. There is no restrictions. Only you set your own rules. That is why most fail
Even $10 invested into bitcoin will bring profit. All that required is the patience and the understanding about the market. People have difference of opinion. One should not consider it an investment to be rich. It needs to be prioritised as an investment for the future. Depending on the amount invested will be the profit. Majority of the people have suggested to go with the DCA technique. This is quite good, because unlike the amount spent and the price of bitcoin, we were able to buy Bitcoin at an average price. One thing to be noted, should not buy for $30 and leave it. Continue to buy at regular time interval.
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Or instead, one can buy and hold. Investing incrementally over a series of times. Little by little, those little investments become a lot. In any case, it is his funds, all risk that he would take must first be his financial decisions.