This also would reveal a clear failure mode for a potential breakthrough technology: there may be a different technology that overtakes the impact on that functional goal. A good example of this is Project Loon, a technology selected by the Review in 2015 because of its promise to bring internet access to formerly unreachable areas around the world. While this specific project did not become a breakthrough and was shut down by Google in 2021, the overall functional goal of making the internet more accessible has been carried forward by other companies, most notably Starlink. The form that was used to achieve that functional goal was different from what the Review predicted in 2015, but the functional goal has been important and had a significant impact.