What do you think about this?
I think you're a bounty spammer hoping to earn Merit. Posting the same topic on 2 different boards isn't going to help you.
Unlike paper currency, the value of this currency is not fixed.
The value of paper currency (fiat money?) isn't fixed either.
The price of cryptocurrency fluctuates constantly.
The price of
anything on a free market fluctuates constantly.
A basically fluctuates like a stock index.
What's A?
investors need to keep an eye on how popular the currency they want to invest in is.
Great! How much have you invested in Bitcoin? And what do you do to keep an eye on it's popularity?
Since the prices of cryptocurrencies are not always the same, the price of coins often falls sharply.
So far, the value of Bitcoin has risen more than it has fallen. What's your point?
The investor should not be disappointed, he should wait a few more days to benefit from the investment.
Or a few weeks, months or years. Or just keeps his bags of worthless shitcoins
forever. How did you come up with your advice to "wait a few more days to benefit"?
The amount of cryptocurrency coins and tokens is gaining popularity day by day,
Some of them, yes. Others don't. You can say the same about many things.
It is said that in a very short time cryptocurrency will spread worldwide
Who said that? Cryptocurrency is already known in every corner of the world. What's your point?
the market for cryptocurrency will expand rapidly.
Are you predicting the future with absolute certainty?