Memorizing isn't hard, especially of 12 words seed phrase but don't do it the day before you fly, do it weeks before your flight. Exercise every day, repeat those 12 words every day for multiple times, for hours and it will be sealed in your mind. Read this 12 seed phrase like it's a song and it will be like a muscle-memory.
memorizing is out of the question. it's harder than memorizing a brainwallet. no amount of practice is going to allow to remember it for longer than a few hours if that.
Why is it out of the question? What's the hard part in memorizing 12 words seed phrase? It's only 12 words. Hell, even if you don't remember them in a correct order, you can still successfully gain access to your wallet within minutes with the help of GPU.
Seriously, there is nothing hard in memorizing. If you have never been in touch with educational materials, never learnt anything at school and do only repetitive tasks your whole life with the guidance of other people, you might fail but otherwise there shouldn't be a problem.
yeah and know that if you forget them you lose over 10,000 Euros in btc.
If you loss paper or anything where you wrote your seed phrases, you are also losing over 10,000 Euros in BTC. The difference?