Brain wallet.
You need to memorize your seed phrase.
If you are preparing for worst case scenario that means you may not be able to go get a physical back up. If you memorize the seed you can restore...
Oouf, not sure I would trust my brain.
On the other side, not sure i would trust to bring a steel plate across border.
On the other side, not sure i would trust to bring a steel plate across border.
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