So I've seen this news about El Salvador's president buying 150 Bitcoins and he said that you should zoom out to see why he bought it and I believe this is why:
First look at the Stochastic Oscillator and you will see that it was already overbought, so it was about time when it will crash a little bit again, then look at the chart and you can see golden cross where this green arow is pointing at.
What this means? It means up.
Also there's a reason why Bitcoin crashed and it is obvious - if you look at smaller scale, 1 day, exactly the opposite happened, it has reached death cross. That means down for a little while.
This is basic trading knowledge and I strongly believe it's not China that caused this, but simply Bitcoin's Moving Averages themselves.