Lost funds. Bounty for recovery.

Pretty sure the funds are lost for sure. If anyone know how to recover it, or if you are the lucky person with this wallet, I'll either pay 50% of the fund for the recovery, or kindly ask you to return half of it? lol.

Sent ~21ETH to the wrong address. yea yea I'm stupid. https://etherscan.io/address/0x7083609fce4d1d8dc0c979aab8c869ea2c873402

Offering 50% of it if there's a possibility of recovering it.