How can you brake LN = 2nd layer when it's same secure than bitcoin ? (see rethoric inside )
I wasn't specifically referring to LN, but any kind of 2nd layer solution. That question shouldn't even be asked. Everything can be hacked.
And how would you brake the protocol if you go from 1MB -> 2MB ?
Find me an implementation that does this change whilst safely covering for quadratic hashing with limitations? Right, there isn't one. There is something which is untested, unreviewed and which does a security 180 degree flip called "emergent consensus".