What I do using the 1000 most used words
Cambridge based geneticist, Theo Sanderson has built a great tool, THE UP-GOER FIVE TEXT EDITOR. You're asked to explain a hard idea using only the ten hundred most used words.
There's been a bit of a Twitter meme to try to explain your job within the same parameters. Here's my go:
I help people who build stuff with computers think about what good looks like
and use numbers to see if what they're working on is getting better.