The signal
Researchers have demonstrated self-healing concrete, bacteria-grown building materials and materials that sense chemicals. Almost all of this is still in labs or small pilots.
Where it could lead
Materials that repair themselves could make infrastructure last longer and cost less to maintain. It’s an example of biology becoming a manufacturing technology.
What Jim Carroll Saw Coming
Related archive reading (2025) — Decoding Tomorrow: 30 Megatrends - #16 Material Science Breakthroughs: “We are moving beyond static objects to a world of living materials that heal, think, and reshape our reality.. The overlap with Programmable Living Materials is thematic—particularly living, materials—rather than evidence that Carroll predicted this particular signal. The article provides a historical perspective to investigate alongside the newer development: Engineered biological materials could introduce repair, sensing or adaptive properties into products and infrastructure.
Evidence that would strengthen the case
- A living material passes building-code approval
- Commercial products with measurable maintenance savings
- Reliable manufacturing at scale
What could prevent it
- Living components die or behave unpredictably in real conditions
- Regulators won’t approve engineered organisms in products
- Costs far exceed conventional materials