[epistasis]

Empirically, building more of these technologies reduces the costs of these technologies. This is often called Wright's Law across a wide range of industries. These links look at real data for this.

If you are unwilling to accept this premise, of changing costs, then there is no neutral or accurate source that you will accept. Which is kind of what I expected when I responded, so I regret taking the time. I hope other readers of these comments can benefit from the knowledge, however.