The study of microbes and their interactions is changing our understanding of biology, but only a small fraction of microbial species have been cultured. One of the challenges researchers have faced is the limits of existing tools used to study microbes. We spoke to Peter Christey, co-founder and CEO of GALT, about our emerging understanding of the microbiome, the need for a technological transformation of microbiome-based science, and how his company is hoping to fuel the emergence of new insights with its high-throughput technology to isolate and cultivate microbes.