Since i read some stories behind people nowdays, Proof of Work is not up to date (worth it) anymore
you need to be bloody rich to mine with PoW
is there any other solutions? such as Proof of Participation (PoP) ? Proof of Stake (PoS) ??
Regardless of what consensus you use on a network, the security is related to the total value of that network imo. That means you can't expect a system that runs with $10 to have the same security as the other who have millions or trillions of hash power behind them.
Even if you use PoS when the network is old enough, you'll likely need to stake more coins, and hence, it will require you to spend extra money. On top of that, the network might not be as secure as you think, especially if somebody owns 40% staked coins or so. The solution would be to use a randomized validator, but this still requires you to be on the top list. Long story short, more money means more power and chance to get rewards from mining or staking, regardless of the consensus. What you should worry about is which one is more secure and fast.
