Sort:  

I think in 7 to 10 days it will pick up again.

I sure hopes so... sounds likely too, but that's exactly what I was thinking 7 or 10 days ago.

Starting the 21st people will get there fiat money and invest again in the 1 coin they know the best: bitcoin.

Okay, but why on the 21st, I see the 15th and the 31st as more likely ?

We get paid on the 21st in Europe.
People needed the fiat for presents and sales. Nobody has fiat now.
A lot of people made an account in order to buy cripto.

I never knew anyone in Europe who got paid on the 21st, not a single person - but I won't argue. It makes sense that a lot of money would flow into crypto towards the end of the month, people won't have a lot left after Christmas.

In The Netherlands almost everybody gets paid on the 4th week of the month.
It will be alright.