It's repetitive because this is a difficult concept to grasp. This was mentioned in the foreword. But I'm sure you didn't read this, because you are rushing to judgment. Where are there errors in fact and logic? s_lone did not have a leg to stand on.
Errors in fact and logic.
Vision is not a sense.
We visually see the stars as they are in the present rather than as they are in the past. If the sun were to explode, we would see it instantly and not 8 minutes later.
In a blameless world, one would necessarily never do harm to anyone because it would be a mathematical impossibility. This implies that we have a perfect understanding of every single consequences of our actions, which we do not. I'd still like to know how a pedophile would be stopped from abusing a child in a blameless world. And if you respond that pedophilia would not exist in a blameless world than you need to explain the cause of pedophilia and how it can avoided.
I think the weak spot in Lessans world is in assuming that a blameless world would lead to nobody ever striking the first blow. People have varying moral standards and some people wouldn't hesitate to steal something from someone else if they knew they could get away with it. They wouldn't even feel guilty about. Lessans assumes we all have a perfect conscience but I fail to see how that is true.