The window only has 72 hours left? In fact, both sides are "waiting for the other to blink first."

The current situation is very much like a classic game theory scenario: two cars driving toward each other, whoever turns first loses.
The U.S. applies pressure by shortening the ceasefire period, while Iran counters with uncertainty over "whether to participate in negotiations." This confrontation is essentially a psychological war.
Donald Trump's strategy is clear:
 Use time to force you to make a choice.
And Iran's strategy is:
 Use uncertainty to buy time.
This creates a very delicate balance: neither side wants to make the first concession, but both fear losing control of the situation.
From historical experience, such a situation rarely resolves quickly. Because if one side suddenly makes a concession, the internal political costs can be very high.
So the more likely path is to continue "stalemating":
 Extend the time a little, release some signals, and then test the waters again.
The real turning point is not whether negotiations restart, but whether there is a "substantive concession."
If not, this game will continue longer, or even enter a new cycle of tension. #美伊二轮谈判进展