The reason for this question is that I just wanted to know if after losing one's bitcoin, will it be accredited to the number of Bitcoin mine even if the wallet can never be recovered
If Yes then can't the wallet be trace back Afterall it is possible to see the number of Bitcoin own by an unknown individual through bitcoin Blockchain and with the years of dormancy of the address its possible to know if the wallet address might be lost and if the address as been long (like 2010, 2011 or 2012) such address could easily be hacked because it likely an Hot wallet and security was not that strait
LOL, you are completely wrong in your assumptions mate,
First, the number of years a wallet is left for dormancy does not tell whether that wallet has been abandoned or not, there are many who are really good holders, they can buy, withdraw to their private wallet and forget they ever bought bitcoin, until several years to come.
Secondly, non-custodial wallets are not easy to hack, infant, a hacker can not hack into a non-custodial wallet without having access to the wallet's private keys or seed phrase, so if the real Owner of the wallet have lost his or her wallet private keys, the hacker must have to have the same lost private keys to gain access into the wallet.
And to answer the question in general, bitcoins that are truly lost cant be recovered, except by miracle, someone comes in contact with the correct private keys or seed phrase that unlocks the wallet that contains the supposed lost bitcoin.