system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What has been Greece been doing economically to become stable again since last year?

Has the nation had a strong return, or has it been worse, or is it really just to early to tell?
gpt
Greece's economic instability stems from the fact that its a borrowing based economy.  In other words, a substantial portion of the Greek economy is either directly or indirectly caused by Greeks borrowing money from foreigners (primarily other EU countries) and then spending that money on imports.  If Greece was cut off from its foreign loans it would very quickly collapse into a sort of Venezuela Lite.

Greece's economic instability since 2008 is a reflection of the fact that it has become more and more apparent that Greece will never pay back most of the money being loaned to it, which has caused the people loaning it money to consistently reduce the amount of money they are willing to loan.  As it stands right now, the overwhelming majority of Greece's loans come from the EU and are viewed as a sort of foreign aid as no one seriously expects the money to be paid back. 

Due to how its economy functions, Greece's banks are also chronically on the verge of going bankrupt.  This has caused further instability because every time there has been talk of reducing loans to Greece, Greeks get afraid that the banks will go bankrupt and as a result there have been numerous bank runs as people try to pull their cash out and stash it overseas.

So, to answer your question, Greece is not economically stable.  It is entirely dependent upon convincing the EU to continue to provide it with loans, which again are little more than foreign aid.  However, it currently has a deal in place that will provide it with a consistent amount of money through the end of 2018 *so long as Greece meets certain terms*.  This isn't different from prior bailouts that Greece has received, and Greece has a very poor history of meeting the terms that it has agreed upon with its lenders. 

However, this time Greece at least appears to be making an effort to keep up with the terms, and so for the moment is "stable" in the sense that so long as it continues to meet those terms it will continue to get its agreed upon money from the current bailout for at least the next two years.