The transition from paper letter carried on a buggy carriage to emails is a paradigm shift in the communication landscape of our civilization. At the present moment, many visionaries are professing that a similar impact transition will occur to practically every activity in our daily life: from gaming to how we work to how we interact with the physical world. Augmented reality, mixed reality, virtual reality, 3D light-field technologies…the gateways to the metaverse…will create this next paradigm shift. Despite these displays’ respective engineering complexities, they all have one thing in common: light must pass through a pair of human eyes. Therefore, it is altogether natural that this precision engineering is best implemented by the art of nanotechnology and microtechnology. The next generation students and practitioners of device fabrication equipped with these techniques will play a crucial and fundamental role in defining the visual quality of the metaverse. I will share some key state-of-the-art fabrication technologies as well as unsolved challenges in materials and fabrication with the hope that our EIPBN community can be key players in contributing to this future.