Sometimes the decisive innovation is not adding capability but removing complexity — designing for the constraints of where the technology must actually run.

A recurring theme in my work is simplification as strategy. The MASH machines were containerised, modular, and designed to run on variable feedstock near where biomass grows, rather than as large centralised plants demanding uniform inputs and skilled operators. This is not a compromise on sophistication; it is a different locus for it — the sophistication goes into making the system robust, distributable, and simple to operate.

For distributed, hard-to-abate contexts — a plant in rural Karnataka, a demonstration in Tanzania — this design philosophy can matter more than raw performance. A slightly less efficient system that actually runs reliably in the field, close to its feedstock, with modest operator demands, can beat a superior system that only works in a laboratory. The same logic is increasingly relevant to stationary and grid-scale energy storage manufacturing, where process simplification may unlock deployment that incremental performance gains cannot.

The general proposition is that in certain innovation contexts, reducing the operational and logistical footprint is itself the frontier — and that this kind of subtractive innovation is systematically undervalued by metrics that reward performance over deployability.

The open question

When does subtractive innovation — removing complexity — beat additive innovation, and can we tell in advance which context we are in?