How big is a nanometer?
Our vision is to calculate with light. This requires particles that are smaller than the light. How small these particles have to be compared to a hair you can see in this video.
How do we arrange millions of particles at the same time?
Furthermore, one needs a structuring in order to be able to calculate with light. For this we let the structure assemble itself. The period is given by a template in which the particles assemble by „drying“.