The feel of this game is really interesting, it's like the games where there are tiers of income producers, only there's only two tiers and the second tier slows down a bit.
When you unlock a new tech, it says it is level 0 even though it is actually level 1.
Cost reduction boost doesn't seem to propagate up the chain the way income boost does. I can't tell on speed boost.
Fixed in 0.7 - should be coming out tonight or tomorrow, depending on my debugging prowess!