today I read the news that Iran has warned about "more serious revenge" against the United States. such statements are not some kind of joke and what exactly they can do?

I believe that 2020 began very poorly if you look at it from a political point of view.
If the disagreements between the US and Iran will continue, this could end badly. How will this news affect the market? can they start to sharply raise bitcoin at the price? if bitcoin will grow fast, then altcoins will be even worse

They do not have accurate weapons and their personnel are not accurate too, look ay what happens to a Ukraine airplane they shot, they claim it was a human error, if this is true, then they do not have personnel that are accurate in hitting the target and they also lack enough weapons to go to war, they just want a show up to show that they can but they really can't.