Against Entropy

After a long hiatus, I've been solving all the problems that arised due to the ephemeral features of the internet. Google services are becoming more and more unreliable, many diagrams and pictures were lost after one of those services was discontinued. I recovered most losses and the posts are back with all the original information. Also, I saved all photos in Github if blogger (which is owned by Google) also decides to lose this new batch of pictures. Life and work are constant fights against entropy, which is just a big word for loss.