You don't tell an American to switch off her light; you build her a better light bulb.
A leading British doctor with a radical plan to save the NHS and a Silicon Valley billionaire with a radical plan to halt climate change, meet outside an abandoned train on a salt flat in South America.
A landscape so bright in its whiteness that it isn't easy to look at, and so uninterrupted in its flatness there's no echo.
For Kimsa...