Impressive, but I don’t sure that it’s a right way. Better try to memorize 80 digits faster.
For example, Ramon Campayo is the speed memory god, but his result with 80 digits is 40 seconds.
20 digits in 4 seconds
@AttiLa-24 this is not my regular training I just like doing it for fun.
If you do not focus on this, then it is useful, because it helps to form images faster.
Good luck in training!