Thanks @steevc. I appreciate your comment, you are right.

My intention with this post is to fill a hole in the system: Detailed documentation of how it works.

I think it's unacceptable that if you want to know how it works in detail you not only have to be a software developer but also take the time and be patient to read the code, which is very difficult from the beginning.

In physics you have a lot of books explaining everything in detail. Then you can write a book without formulas to reach many more people. But here in steem is the contrary.

For future readers, these posts can also be useful to get a description of the general idea:

• Improving the economics of steem. Community proposal by @steemitblog. Description and motivation explained from the developers.
• What Will Likely Happen When Steem's EIP Is Put Into Motion? by @kevinwong. Expectations with HF21.
• Reward curve deep dive by @vandeberg. More details and motivation with respect to the curve introduced in HF21 explained by the senior blockchain developer at steemit inc.
• The fork and the bunny by @dustbunny. Simple explanation about the new curve.
• Secondary effects by @eonwarped. Discussion about changes in HF21.