Information is not simply human-specific. Just ask your computer, which stores tons of information :)
The "you" here can be any information storage-and-retrieval system; there is nothing about theory that obligates it be a human being, or even that it code its information in any form recognizable to humans.
Maxwell's demon can help one in understanding the principle. For those who don't know, this is a thought experiment in which a tiny "demon" is imagined to watch over the molecules in a hot gas in a chamber, initially at thermal equilibrium, and has a door it can open/close to let molecules into another, initially empty, chamber, so that it can, say, let only fast molecules through, thus causing an accumulation of fast molecules in the other, empty, chamber, while the initial chamber becomes dominated by slow molecules. The once-equilibrium gas has now been partitioned into two reservoirs at different temperatures.
Now for the article. The problem is that, in the usual setup, this requires some form of sensing capacity on the demon, which, thanks to a famous argument, must then dissipate energy, and so it cannot be used to extract any work.
But suppose that instead, the demon were loaded up with exact information about the movements of all the molecules in the system in advance (We will ignore quantum mechanics for now, as thermodynamics applies both classically and quantumly). Then, by definition, it can extrapolate their movements using the laws of dynamics so as to know exactly when to open and close its gate to let the fast molecules through without any sensing, thus achieving the same sortition. You can now run a heat engine between the two, and there's your work output.