04/14/2026
Two signals tell me a technology is becoming unstoppable.
The first is installations.
Each new installation tells you someone chose that product over everything else available. Each bigger installation tells you they want more. Installations are not announcements.
They are decisions. Repeated decisions, across different customers and different markets, are market validation you can trace.
The second is unit economics.
When a new technology enters the mainstream, the cost per unit should be falling. Not gradually. Structurally. The solar curve is the clearest example in history. Every time cumulative capacity doubled, costs dropped by roughly 20%. That is the Swanson curve. It did not stop. It compounded.
When I see both signals together, growing installations and falling unit economics, that is when I know the technology is no longer a forecast. It is a fact.
Right now I am watching both signals in battery storage.
US operating storage capacity reached 37 GW by the end of 2025, up 32% in a single year. Lithium-ion battery costs dropped 40% in 2024 alone, following a 90% decline over the prior decade.
Installations accelerating. Unit economics compressing.
That combination does not reverse.
What technology are you tracking these two signals on right now?