@koubiac,

You say that the only way for the attacker to try again
is to change the kernel, but if their attack fails
(chain is not accepted), then why can't they try
again with the same kernel?

@come-from-beyond, maybe you are not stupid; there is a
certain cognitive bias that causes us to lend more credibility
to white papers, but if you post the link to the paper
and point out what section it is in, I'll take a look.