In case anyone is wondering why anyone should give a shit about this language, the relevance of MUMPS is that the largest market share holder of EHR systems is Epic, and their core database still runs on MUMPS.

You life, quite literally if you find yourself in a hospital, depends on MUMPS.

The second largest competitor, Cerner/Oracle Millenium, runs on MSFT SQL, and it's on life support. Last I heard, Oracle was looking to unload it.