Once again, the talking- and typing-heads are filling our news screens with double-doming about building an “off-ramp” Vladimir Putin will be willing to take to get out of the Ukraine war. But Putin still doesn’t seem to be looking for an off-ramp. He’s frantically watching out for a trapdoor. It may well be his most likely exit from the Ukraine war he now knows he can’t win. A now panicky Putin fears he might stumble or strut onto an unseen trapdoor that could instantly become his (how to say) downfall. A yank of a lever — by an unseen hand of a military hard-liner (or even thousands of clenc…