The group of programmers that were working on this found that existing programming languages couldn't really suit their needs to build what they needed. So they end up writing their own new programming language called the Massachusetts General Hospital Utility Multiprogramming System or Mumps.

What the people at Wisconsin really want is the same thing that the people at Harvard and MGH really want is this integrated system where they can get longitudinal patient records across the continuum of care and that they can use to bill the payers. The holy grail.

Identifies the core value proposition that drove Epic's success - integrated longitudinal records plus billing capability. 'The holy grail' makes it memorable and emphasizes how elusive this was.