[082349872349872]

2nd sentence: An expert is someone who has repeatedly solved the concrete problem you are encountering.

EDIT: A kiwi once asked me "what do you do for a biscuit?" for which I required the translation: "and what might your area of expertise be?"

[1letterunixname]

s/encountering/& faster, cheaper, and/or better than you or most people/

PS: I would ask: "What kind of biscuits? Do they have low glycemic and high satiety indexes?"