We know that bitcoin is strong and all the wallets have milletry grade security but one of my stupid friend today said that maybe someone can hack it with just a calculater because with math and correct formulas we can even predict gambling bets if that is possible then maybe there is any chance of this
it strong and it keep stronger in term of security it will only be possible for your friend if he/she have a better knowledge than the thousand computer that keep on calculating bitcoin network