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?
if the bitcoin network don't detect the address it will return back to you, that's possible. have you experienced it?, Actually my experience in crytopia And I was sending btc to my wallet it has a confirmation if you really want to sent it in that address, and they are checking if that address is existing.
going back to the first question, If you sent it, you just make someone rich, ,even if it's not that large amount.