Quote from: bob123 on August 25, 2018, 07:40:01 AM

Quote from: btj on August 25, 2018, 01:35:55 AM

I am not the negative guy of the gang, it's great to offer solutions to improve bitcoin or blockchain technology ... but security first (Especially when people's money at stake).

You seem to be the 'uneducated' guy of the gang. At least regarding the LN.
You have a lot of misconceptions regarding the LN.

Before going furthur, stay educated and do not shoot garbage there face to someone you don't know.

So let start with MIDDLE MAN:

Quote

1. Alice opens a payment channel to Bob, and Bob opens a payment channel to Charlie.
2. Alice wants to buy something from Charlie for 1000 satoshis.
3. Charlie generates a random number and generates its SHA256 hash. Charlie gives that hash to Alice.
4. Alice uses her payment channel to Bob to pay him 1,000 satoshis, but she adds the hash Charlie gave her to the payment along with an extra condition: in order for Bob to claim the payment, he has to provide the data which was used to produce that hash.
5. Bob uses his payment channel to Charlie to pay Charlie 1,000 satoshis, and Bob adds a copy of the same condition that Alice put on the payment she gave Bob.
6. Charlie has the original data that was used to produce the hash (called a pre-image), so Charlie can use it to finalize his payment and fully receive the payment from Bob. By doing so, Charlie necessarily makes the pre-image available to Bob.
7. Bob uses the pre-image to finalize his payment from Alice

So Bob here is the middle man, he can affect time of transaction and especially if he go offline.

LN is a network of several centralized hubs ... and you have to choose a performent and all time online to prevent delaying transaction etc ... So here a contract of trust ...

I invite you to read more here for disadvantages of LN in the current state and what make it centralized:
https://medium.com/crypto-punks/lightning-network-ux-centralization-b517037b92ec

Colluding miner attacks - miners have power to decide which transactions they want to include in the block so they can refuse certain transactions selected by an attacker. This attack is very unlikely to happen due to high cost and complexity (all miners would have to cooperate).

You have to trust miners.

And please read more about "what make a technology decentralized" before posting anything else ... and also to prevent spamming this thread since the first goal is to give some knowledge about LN and not to debate it (I given my feedback like you did yourself, there many other threads about this.).