Even after Facebook stock drops, why is the Steem market crashing?

-Crypto Coins Failing Value-

So after all the scrutiny from the U.S. Government on Facebook, their stocks started to visibly drop. This was GREAT news for Steem platform supporters. We could visibly see our own pockets starting to fill!

Well, that was last week and now Steem value is at one it's all time lowest monetary worth. Even Bitcoin has dropped it's own value by 15% in the last week.
What's going on?
Why is the crypto market dropping in value?
Didn't the projections mention a possible 90k per dollar for Bitcoin?

Steem Graph.jpg

Here's a simple answer......
Markets rise and fall.
Here's why...
When the value of a market item (in this case Crypto Coins) rises to substantial value, many people are quick to sell to make a quick buck.
"Buy Low, Sell High" a fundamental idea of sales and profiting.
This is an easy explanation to the wave flow in markets and stocks.