10/15/2026
What if the blueprint for a smarter city was growing in a petri dish this whole time?
This weekâs Ray of Hope Accelerator Startup Spotlight is Mireta Urban Dynamics, a team that studied something easy to overlook: how slime mold builds networks.
Physarum polycephalum, a single-celled organism with no brain, grows transport networks so efficiently that researchers have used it to recreate real-world rail maps. Over 500 million years, it refined simple physics-based growth rules that balance flow, redundancy, and resource efficiency, exactly the problems urban planners wrestle with today.
Mireta, a Harvard spinout, studied those rules and translated them into generative design algorithms. Using agent-based and hydraulic-feedback models, they help cities and developers grow infrastructure in silico the way slime mold grows in nature, already trusted by global leaders like Surbana Jurong, B+H, and McKinsey.
The results validate the science: infrastructure thatâs 30-40% more material-efficient, with 40% better failure tolerance and up to 40% less traffic congestion.
Sometimes the smartest systems arenât engineered. Theyâre grown.
Learn more at www.miretaurban.com
Save the date + register today for Demo Day, December 9: https://luma.com/oikavvkx