We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
From reading the article, a more accurate description would be that they created a tiny quantum refrigerator. Seriously. They added energy to a system in such a way that it reduced the entropy of the "inside" region on a quantum scale. Your refrigerator does this continuously on a macro scale. In both cases the effect relies on providing energy from the "outside" of the system boundary, thus raising the entropy of the universe as a whole.
Now the article may be dumbed down in such a way as to make it less clear what's happening, but to reduce the entropy of a system is in no way synonymous with reversing time.
Another Guy named Dan
Time is a mental construct because we can remember what something use to look like and can imagine what it will look like.
We can measure that change by comparing the change in an object with the regular reoccurring change in another object -- sun, moon, stars. Math is simply a language to precisely talk about that change. Change happens, Time is a measure of change.