Cardano PoS vs. Bitcoin PoW

We would like to honestly compare Cardano Ouroboros PoS with the Bitcoin PoW consensus algorithm. It will be only a high-level comparison and I will create a summary table at the end. PoS and PoW are both good protocols. However, they are dramatically different in many details and it has a significant influence on usage.

PoS vs PoW

Why consensus is made