[jjtheblunt]

lightning is a reimplementation of a part of visa, caching for response time and still recording on a blockchain, no?

reminds me of https://en.wikipedia.org/wiki/Greenspun%27s_tenth_rule

[gbaygon]

It's an alternative payment network, implemented as a bitcoin layer 2. You can argue that it's somewhat centralized, but not as much as Visa.

[npc12345]

No, that is not how lightning works.

[jjtheblunt]

How is it essentially different?

[npc12345]

Visa transactions can be reversed, Lightning transactions can not.

Bit a of an apple to oranges comparison anyways but that's the biggest difference.