Nice explanation. It should be linked to FAQs. It also explained the reward pool question I had in the back of my mind but never found the time to ask: I was unsure whether the idle curator votes were empowering active curators.
The only thing I see missing is the bullet for voting power and how it affects the upvote value.
So... based, on the 0.20-0.30 figure for your SP, and the price decline over the last hours, I extrapolate it'd take something like 60-80k SP to get to 1$.