RE: POS, DeFi and Passive Income

Your infographic isn't correct.

We Hivers all know that you don't need to "own" 51% of a POS cryptocurrency in order to hack the network.
Firstly control is obtained by controlling 51% of the actively voted staked cryptocurrency. This is much less than 51% of the total cryptocurrency.

Secondly, you can convince or trick third parties into voting for your proxies or proposals, just like Xuchen Sun did with Steem

With ETH 2.0 it is expected that 0.5% of total ETH will be staked.

Thus one could hack ETH by just convincing or tricking holders of 0.25001 % of ETH to do your bidding.

POS is great for many things (like faster, cheaper transactions).
But is fundamentally less secure than POW.

My very first post on Steem was on this topic.