Without an exit ramp, Israel insists its hands will not be tied by an agreement reached this week, this month or next, should it contain a clause that ultimately normalizes Iran's home-grown enrichment program.
On the surface, its leadership dismisses fears that Israel will be punished or delegitimized if it disrupts an historic, international deal on the nuclear program with unilateral military action against its infrastructure.
By framing the deal as fundamentally flawed, regardless of its enforcement, Israel is telling the world that it will not wait to see whether inspectors do their jobs as ordered.
"Ten, fifteen years in the life of a politician is a long time," the Israeli said, in a vague swipe against the political directors now scrambling in Vienna. "In the life of a nation, it's nothing."
Problem number one: Israel won't comply with any Iranian deal it doesn't like.
Prime Minister Benjamin Netanyahu has threatened the use of force against Iran several times since 2009, even seeking authorization from his cabinet in 2011. Iran's program has since grown in size and scope.
According to his aides, the prime minister's preference is not war, but the continuation of a tight sanctions regime on Iran's economy coupled with a credible threat of military force. Netanyahu believes more time under duress would have led to an acceptable deal. But that opportunity, in his mind, may now be lost.
Whether Israel still has the ability to strike Iran, without American assistance, is an open question. Quoted last month in the Atlanticmagazine, US officials suggested that window for Netanyahu closed over two years ago.
But responding to claims by that same official, quoted by Jeffrey Goldberg, over Netanyahu's courage and will, the Israeli official responded sternly: "The prime minister is a very serious man who knows the serious responsibility that rests on his shoulders. He wouldn't say the statements that he made if he didn't mean them."
"People have underestimated Israel many, many times in the past," he continued, "and they underestimate it now."
Problem number two: there's no deal with Iran that Obama and John Kerry can broker that Israel will accept as legitimate and "not fundamentally flawed".
That leaves us in a position where Israel is guaranteeing it will attack Iran in order to sink any deal. Well, attack Iran at some unspecified future point, but still, it's not helping.
Of course, that's the point.