OK, OK...
Why is it going to crash? I'll point you in the right direction and let you come to your own conclusions:
Take a look at DGD over the past couple months. What do you think the function of that coin is, really? Look at the charts, see any correlation between it and BTC?
Long story short, follow the whales lead. A stagnant price is good for no one, especially people who are just into this to make money, and have money to throw around. If only there was a way to keep the market volatile, and yet always know when to get in and out?
This is just one reason, but IMO it's a good one. I would say that yes, maybe it'll just be a correction. But does that make sense right now? What are we correcting from? The market has no legitimate reason to "correct" when the price has been trading sideways for a while. The term doesn't really even apply. Corrections happen after big spikes, not sideways trading. BTC dictates everything, from eth to alts on down. (But eth is slowing breaking free of course.)
Now please mock me and point out how I have no idea what I'm talking about before looking into matters further.
But really, just look into it.
And just to reiterate, a speculation market is driven by emotions, not logic. The hope of getting rich, the despair of losing money you shouldn't have put in, the greed when you get kinda there but want more, the frustration that people are becoming millionaires and you're not, the loss of hope and back to my shitty day job, but oh wait look, market going back up, time to get back in. We are at the stage where us normal people are realizing they aren't getting lambos, but why did you think you ever could? And how would you play this market if you already had a few lambos and the emotional component was almost nil? See above. Crash incoming, then a big bounce back. Like it has done every. single. time.
And just in general:
Follow the news, study the charts, ignore 99% of forum posts here and elsewhere (including this one), trust your gut, don't get greedy, take your kids to Disney World with your gains.