If the only way to reverse the transaction history is to do more work than was done to record the history in the first place then the setrlement assurances provided are a function of the cost of the work done.
Discussion
settlement of what?
it's easy to build a better mousetrap when the mice are all in your head
Money is valuable because it can facilitate trade. It has nothing to do with how tagible it is. Gold's tangibility has nothing to do with it's value as money. All other metals would be money too if tangibility had anything to do with it. Tangibility actually makes it worse at being money in a digital economy.
But the reality is that none of this bullshit matters. Bitcoin is going to keep working & keep being money whether you understand or agree or not.