Memorizing your seed phrase is absolutely an uncalculated risk.Seed phrase are to be written on several pieces of paper or encrypted on a steel and kept in a safe place.What do you think should be the essence why crypto wallets generate seed phrase,the reason is seed phrase that is also known as recovery phrase are mixed words it could be 12 or 24, they are used to recover wallet in case a user lose hold of his/her digital asset and crypto wallet.The best way to store your seed phrase is by keeping it safe offline(on a paper)and not online.Memorizing your seed phrase is nothing but stressing the brain that's meant to store other vital informations.