South Africa, Sept. 23 -- For decades, Africa has been described through a single word. Potential.

The youngest population in the world. The fastest growing consumer base. The untapped market. The next frontier.

Potential has become Africa's most persistent narrative. It may also be its most dangerous. Potential is not a strategy. Potential is what we call a promise that has yet to become measurable progress. The longer Africa is defined by what it could become rather than what it has built, the greater the risk that investors, innovators and global markets begin to question whether delivery will ever match ambition.

The next five years will determine whether Africa becomes a creator of technology, intellectual property and innovation,...