I think the idea that we can predict what Putin's lines are went out the window four days ago.
If he is completely deranged and wants to start a nuclear war he could’ve done so without sacrificing so many Russian troops.
He can sit in his bunker and order a nuclear strike and even if most forces would disregard that order it only takes one launch to bring on the end of the world as we know it.
He knows he is running out of time and he wanted a new Russian empire to be his legacy but I don’t think turning Europe and North America into glass is on his todo list.
At least I hope not.
Quite a lot of people said he seemed like he was going to, for quite a few weeks in advance, though they were trying to dissuade him, just counting people in the US government, NATO, etc.
> The president of Ukraine said like two days before hand that it was unlikely.
He said that the West needed to move forward the sanctions threatened for after an invasion to before, and that Russian behavior depended on immediate, united Western action.
The US media played up the part you refer to and downplayed the I assume our friends will heed my clearly-correct and urgent advice context, because they had a narrative they were selling of “Biden Admin sees imminent invasion, but the Admin is paranoid and everyone else, even the people who would be attacked, disagrees”.
[0] https://fakty.com.ua/ua/ukraine/20220220-reznikov-meta-kreml...
Some had very strong hunches. But that's not the same as "knowing".
I'd been concerned about the buildup for a year, but was practically certain once the abrupt demands to NATO and Alperovitch's analysis came out 3 whole months ago:
It's not so much that he "wants to" start a nuclear war.
The concern is whether he may end up doing that anyway -- if the moment arrives when he is sufficiently cornered and feels he has nothing more to lose.