For anyone who spent the years 2010 to 2012 obsessing over the fate of the eurozone during the crisis set off by Greek debt, the last few days have been a time of uncomfortable déjà vu.

There are messy, protracted negotiations in Brussels, a game of chicken with the entire future of European unity at risk. The talks are on, then they’re off. There are ultimatums. Details of the talks leak, as is perhaps inevitable when there are representatives of a few dozen countries, each with a domestic press they wish to spin.

But just because you feel like you’ve seen something before doesn’t mean there won’t be a different ending.

If Greece ends up dropping out of the euro currency zone entirely, with unpredictable ripple effects across the Continent and the world financial system, the events of the last few days will look like a turning point that led to that moment. As of Tuesday, to be clear, markets were predicting nothing of the sort. European stock markets were down only slightly, and the value of the euro was actually up a bit. In effect, markets have seen this show before: the sturm und drang of threats and counterthreats that end in a last-minute deal.