Bitcoin trading is a big challenge. Get a fast profit, but loss can be in seconds.

In the last few days Bitcoin has started to increase sharply. And most of the Altcoin top goes up. CEO of Galaxy Digital, a crypto merchant bank, Michael Novogratz, said, the price of bitcoin will increase many times over the next 18 months.
But we see today's prices are falling. Is this only temporary?

no one really knows anything, many people say a lot of things and in 2017-2018 they said and what?