Hi!
As the title says, what happens if i get an address wrong? Do the coins get lost?
If that's what happens, why not change the code in Bitcoin, so that if the bitcoin network cant detect that address, returns the bitcoins to you?
That would be your loss if you had sent it to a wrong address I dont think that the wrong address you had sent would return that to you unless you have proper communication with. But i doubt if the wallet owner would return it. It would be a lucky day for that wrong wallet address.