Yes of course there is a correction coming (or a Dark Age).  That is a very clear trend in the BTC (for 6 years), and now other Crypto charts. Lots of ppl pretend it won't happen, and they will suffer the most with lack of preparation.

Each huge wave up is followed by a retracement to just above the previous high.  In this wave up, the start was around $300 on BTC, the high looks like $5000, and the previous high was $1200, which is where it is heading now, and will mark the floor of this current downtrend. The waves last a couple of years on average, but there is a wide variation.