I am really surprised seeing the current situation of the market. Approximately, all he popular coin price is drastically falling. What is it symbolizing?? Should I do invest now or wait to see what happen?

for now, I know the market and the price of altcoin in decline and with so many people who prefer to buy and hold altcoin prices in the long run and wait for altcoin and bitcoin prices to return because the market is also not good because it is still up and down