If you have a cheap means to an end or an expensive one, and you have limited funding because of politics, you will want to pour all your money into scaling the cheap means - then you'll get there much, much faster.

I live close to a wind turbine factory. They could easily have scaled production multiple times over the past five years. The only reason they didn't is funding, in fact during that period they at some point cut production when subsidies were cut.

I think it's getting to a point now where subsidies are not needed. But still, if you're talking about speeding up the process, you can just provide a little extra funding and get big results.