 Physicists believe that you cannot focus light onto spots smaller than the wavelength of light unless you use some very exotic materials. However, I found out that that's not true and you can focus light on spots that could be as small as a molecule with just ordinary materials. Why is that interesting? Well, the microelectronics industry photographs the zillions and zillions of transistors onto silicon chips by using smaller and smaller wavelengths of light. And there will be a limit someday. To overcome that limit, it would be good to have imaging devices that don't suffer from this problem where the spot size does not depend on the wavelength anymore. How is that possible? Well, I used an idea by James Clark Maxwell that is more than 150 years old. He imagined a device where light goes around in circles and light emitted from one point focuses naturally at another point. Nobody built his device yet and I found out a way of doing this. Moreover, presumably also nobody took it seriously and I did theoretical calculations that showed that the wavelength does not pose the resolution limit in his device. And so you can focus light smaller than the wavelength of light with just ordinary materials, at least in principle. Whether that works in practice, of course, remains to be seen quite literally.