This was a year of implementing programming languages for me, mostly. I saw up close how a series of layers (or languages, if you will, that are mutually define

This was a year of implementing programming languages for me, mostly. I saw up close how a series of layers (or languages, if you will, that are mutually defined by virtual machines at the same level) on top of machine code (which is numeric and hence difficult for humans to use), each one more convenient than its predecessor, leads to bridging the gap between what is convenient for machines and what for humans.