Greece’s banks lost about €4 billion in bank deposits since the turn of the year as Greeks fear a return of capital controls that ban them from making cash withdrawals over set limits. Separately, the country looks as if it is tipping back into recession — GDP shrank by 1.2% in Q4 2016.

Does this story sound familiar?

It should. A collapsing economy followed by a run on the banks were the signal events of the Greek debt crisis that began in 2009 and never really ended.

So now people are asking — again — whether Greece might be forced out of the eurozone:

“Assets held by a benchmark Athens-based money market fund are down 11% in the past six months. This suggests that investors are beginning to price in the risk of a Greek exit from the Eurozone.”

“… Households’ overnight deposits fell 1.1% year-over-year in January, indicating that liquidity in the private sector is drying up. Amazingly, Greece and its creditors are sleepwalking toward a repeat of the chaos in 2015, when capital controls were enforced to prevent a collapse of the banks.”

This is what the Greek bank run looks like so far, per Pantheon:

The economy, which has been through worse than the Great Depression in the U.S., has started to falter again after showing signs of recovery:

A debt payment of €7 billion is due in July and the Greek government has not yet managed to reach a deal with the ECB and the IMF. “Greece’s current position in the Eurozone is untenable; something has to give,” says Vistesen.

Although Alexis Tsipras’s Syriza-led government has made some economic reforms and privatised some industries, Tsipras has not budged on cuts to Greek pensions, which are 13.3% of Greece’s GDP — far more than other countries, Pantheon says. (For comparison, UK pension spending per GDP is roughly half that, according to the IFS.)

The intractable aspect of Greece is that its economy is too small to handle the amount of debt it is being asked to pay.

Note that most of the payment due in July is owed to the IMF. The IMF increasingly regards its role in Greece as a disaster. Internally, the debt is regarded as “unsustainable” according to a document leaked to the Wall Street Journal.

Even if Greece fully implemented all the reforms the IMF has demanded its economy would not become large enough to pay off the debt. Its debt load as a portion of GDP is going up, even as it makes payments. (The fact that Greek terrorists are now bombing local IMF targets probably isn’t helping, either.)

So now Greece has all the disadvantages of monetary union and none of the advantages. It owes money to Europe, but cannot receive investment from Europe. Vistesen again:

The economy is saddled with fiscal controls from
 the EU, but it receives none of the benefits of monetary union. The ECB has boosted its balance sheet by 80% since 2015, but has been unable to buy Greek bonds and Greek banks have not had full access to the central bank’s liquidity provisions.

Bizarrely, US President Trump may help make the case for debt relief. He reportedly intends
 to nominate Adam Lerrick — an IMF critic — as the Under-Secretary of the Treasury for international finance.

That will give the IMF more negative optics to deal with, and a greater temptation to announce that it is writing off more of the debt. Or Greece could just default out of the eurozone.

Stranger things have happened: Before the term “Brexit” was invented, “Grexit” was the far better-known word — and the more plausible scenario.

More from Business Insider UK:

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.