You are very correct for anyone who would consider themselves a programmer. I was thinking in a bigger scope; with so many non-programmers working technical ro

You are very correct for anyone who would consider themselves a programmer. I was thinking in a bigger scope; with so many non-programmers working technical roles (and especially with data/databases), I think this is a marvellous way for e.g. project managers to have a brief mental model of what a db index is.