The expression ‘the last frontier’ has a certain allure. It implies a place that is as yet unexplored. Mining it may bring unexpected valuable information. Or danger. And perhaps pleasure. Part of the inherent excitement lies in the unknown, hopefully soon to become known.
Something may be hidden beneath the surface. Maybe gems lying hidden beneath the surface. Or something else.
We don’t know how deep we will have to dig, but eventually, we may come upon something surprising and/or valuable.
