I memorized 100 digits some years ago using physical memory. I would type the digits of pi on the numpad and memorize the movements of my hand, how it feels and which button goes when by position. Then when I would have to recite it, I’d imagine a numpad, move my hand and just say the number that corresponds to the imaginary button I’m pressing.
Don’t know if that could work for 70k digits though
I memorized 100 digits some years ago using physical memory. I would type the digits of pi on the numpad and memorize the movements of my hand, how it feels and which button goes when by position. Then when I would have to recite it, I’d imagine a numpad, move my hand and just say the number that corresponds to the imaginary button I’m pressing.
Don’t know if that could work for 70k digits though