The good news: Between Ukrainian resistance and economic sanctions, Putin’s invasion may bog down.
The bad news: What do you think a megalomaniac will do to stay in power if it does bog down? They don’t call it “Russian roulette” for nothing.
Remember that when Hitler was losing the war, he refused to surrender, survived an assassination attempt, sent thousands of German troops to useless deaths – and finally, to delay the Russian advance a few hours, he flooded the Berlin subways, drowning thousands of Germans hiding there. If he had nukes, do you doubt he would have used them?
Is Putin that crazy? Are you willing to find out?