Hello, @alphafx

you have done a great job, I really appreciate you on delivering this leture as I have learnt a lot, for example, you explained well this,

Steemit uses this reward system, alongside the DPoS. According to the steem bluepaper, coins are mined one block every three seconds and these coins are shared according to pre-determined rules amongst witnesses, curators, content creators, who compete for these tokens. The competition here is not similar to the Proof-of-Work system, where miners burn away energy to win, rather these competitors compete by adding value to the steem blockchain.

I am waiting for your coming lecture about SCP Stellar axniously
Thank you very much for this.