Cross-Platform: Is It Going To Happen?

The amount of money spent globally on repeated tasks of parallel Android / iOS development is alarming. Every software, and soon every hardware company will be double spending on efforts of creating mobile applications for the two platforms. Thanks God Windows and Blackberry are gone. But should a good technology arrive, which allowed writing code once for both platforms, we could probably stop global warming by cutting the workforce by half. Or we could accelerate global progress by giving these smart people something useful to do, instead of repeating what their colleagues have been doing for the other platform.

The more I think about this the more I cannot understand why this problem is not solved. It's been 8 years since the iPhone 1 and the first Android release. The hardware, the system paradigm, the connectivity model, the user experience on both is identical. Yet we still continue writing two apps every time instead of just one that compiles and runs on both platforms. Because "cross-platform frameworks do not work" (this is what has been the crowd wisdom for all these years).

The Web has somehow solved this problem. We do not write separate apps for Edge, Firefox, Chrome, Safari. Yes there are details that differ, but generally there is just one web app. HTML, JS, Angular has taken over and installed the order. Can we have this on smartphones please?