Functional Programming vs Non Functional

I don't see the difference besides syntax.  Seriously it is just a mental block.  Functional and non functional is exactly the same.    The human attempt to "classify" things is the only thing keeping them separate.

For example look at the map structure. If you want to scale it to two machines instead of 1 you can just split it in half and put half on each machine. It scales without much effort.

A database is to a for loop as a fold left is to the mapping structure. The fold left can implicitly hand off half of its actions to another computer, but a for loop cannot.