This Smart contract about fixing the park is a virtual thing. But if someones does this kind of job then in real life there is usually someone else who will accept and sign that the work was done accordingly with the requirements.
First, I don't understand how this works.
If everybody in the neighborhood needs to accept the work and sign it then I think it will be very difficult to be a contractor. Because you are suddently at the mercy of all residents to accept the work which is a nightmare as everybody could have a small things to change.
Let's say the residents there will delegate the acceptance to one single person. This case gets more interesting. What if the persone they delegate this acceptance is corrupted and will sign and accept the work but after 2 months the work will break. How do the residents recovery the loss? Will they go to the _centralised_ court? Will they go to the _centralised_ state to help them? And here goes the problem: what if the crypto dream gets implemented globally so no central authority. What then?
I really think you hit the nail on the head with this statement. There are often so many hidden assumptions in anything that authorities by definition are bad. I believe the whole blockchain/crypto/web3 movement is more an idealogy than a solution to a problem.
What this is really about is that the cryptocurrency enthusiasts distrust authority. They would rather put their trust in anonymous developers, shady mining cartels, exchanges which clearly engage in front running and wash trading, cryptocurrency scheme leaders who are convicted fraudsters, etc. If people genuinely want to put their trust in the less trustworthy, even if for no other reason than trying to get rich quickly, then we have a fundamental problem with our society.