Bitcoin Price Dropped by almost 40% - What Happened?

Why has the Bitcoin price dropped so suddenly? and why did the drop start exactly at the same time as Bitcoin Cash hard forked into Bitcoin SV and Bitcoin ABC?

What the fork happened here? Have the big boys been playing games with us all along like Sean explains in his article here?https://www.hardforking.com/bitcoin-price-drop-explained/ Are we looking at yet another Tether manipulation? Is Bitcoin, and are other cryptocurrencies, so easy to manipulate? Maybe I'm paranoid, but what happens if major stock holders sell at once? The price drops! In an unregulated environment like Bitcoin, this could effectively harm a lot of investors, just like what we see happening right now! And all happened just around Black Friday! Yes, maybe it's all just coincidence and I am paranoid, and that sort of thing can't happen on a decentralized blockchain, no way! ...but what if?

I'm looking forward to read your comments and thoughts on the Bitcoin price drop of November 2018!