Hi ! First message here.
If a global disaster would happen on earth ( And I somehow don't wish it ) Would the value increase or decrease ?
I'm not talking about solar flares or EMP. But more like big wars or great natural disaster.
What are your opinions on the subject ?

It's a very interesting question.
One of replies would be "who knows!?"

But in the case of war the popularity of bitcoin would raise, demand would raise and the price would go upper as the result. I think that case would move not only bitcoin, but other cryptos as well.