Those young men at the start seem sensible, but every sensible person thought this war wouldn't happen. WW3 is still unlikely, but there's a tiny chance Putin could go all Samson on us all and try order a launch of something very negative, if, say, his spook praetorian guard decided this war was a wretched error, and tried to force him out. Still, this war is a scaled up version of earlier Putin operations, albeit with Russian forces performing very indifferently, so the short to medium term outcome is some sort of deal neither side likes, but both need.