People aren't taking the time to learn the meaning of the 'available' memory stat in the Task Manager.
Based on my experience, it's usually very close to the total you get when adding 'free' memory and 'cached' memory together.
'Available' in this case means that, as parent suggests, Windows will free it for use as soon as it's needed.
Remember the Northeast Blackout of 2003 ?
...That we lost the Northeastern grid in 2003 through malicious intervention, or that it simply failed and "dominoed" all by itself after some nasty spikes in Canada?
Hey, don't blame us. The article you referenced (link fixed) pegs the domino effect as starting from within Ohio.
You know, the difference between this company and the Titanic is that the Titanic had paying customers.