A surge in the value of crypto-currencies

So what do you guys think? Is the whole market going again into a big correction, after the prices has skyroketed during the last months? After every sharp uptrend is natural to have also a sharp downtrend. A lot of people have bought on the top, again, since the hype is huge, everyone tryed to get in, even housewives are trading altcoins on daily base...in my opinion this is a sign that the whole market is going down again soon, since there is no more buying preassure. Can we see again the price of BTC dropping up to 75%?