The difficulty is set according to the total hash rate of the network.
Is there a possibility in which miners just can't validate blocks (will not find hash that will satisfy the POW)?
I understand the probability.
there's a very small percent where they couldn't do it, is that assumption wrong?
If a situation like that is possible, what will be the solution?
As far as I understand, there will be an adjustment of the POW, decrease the difficulty, until somebody will find block?
I'm trying to understand if a potential risk to the blockchain exists at that point.