Ideas were never the problem here. What came after was.
Yablochkov's candle lit the boulevards of Paris while Edison was still fussing with filaments. Popov showed a radio receiver a year before Marconi's patent. Sikorsky flew the first multi-engine aeroplane in 1913. The list is long, and it isn't controversial. It's documented.
The historian Loren Graham called these lonely ideas: brilliant inventions with no early money, no first customer and nobody patient enough to wait for the result. The idea stayed alone and, as a rule, emigrated.
Our hypothesis is dull. If the only missing piece is the environment, you can build one. We turn up while the idea is still alone and stay until it's a company. Or until it's clear it won't be. A negative result is still a result.