So a lot of bitcoin has been lost
How did you come up with that considering there is no way to count the coins that are actually lost?
I however think that at this point of technological advancement, there should be a way to recover lost bitcoins.
If it were "technically" possible to recover a private key from any address, then Bitcoin would be considered broken and it will cease to exist unless the algorithms are replaced before it becomes possible!
Lost bitcoins should have a way to be mined back into the market and Recovered..
As someone else asked too: WHY?
Is there a project about this already?? What is your opinion and do you think it's is possible
No and there should never be because we have no way of knowing if a coin that hasn't moved for a long time is actually lost. For example I have some dust I received back in 2014 that I have never moved. That is 11 years but you cannot call it lost since I do have the key of it and can move it any time I wish to.
But does all wrong addresses actually exist... Like does it always go to another account when you make errors???
Addresses, as in the string you enter in the wallet UI, have a checksum which means if you enter random characters into that textbox or have an address and change some of its characters, the chances of it being valid is low. Meaning the wallet software would reject it and not be able to create the transaction in first place.