I use video game locations as memory palaces. I use Pokemon to represent numbers. It takes me 10 minutes to memorize a deck. It took me two 20 minute training sessions to learn how.
I will eventually use it to learn a new language.
I read half of "Moonwalking with Einstein", worked out some exercises, and started practicing. By the next day, I could remember the order of the deck of cards!
I can't believe I went my whole school career without knowing such a valuable technique.
Can you expand on what you mean by cross-improvement?
The differences are huge. One of the first things I did was make a memory papace for my current month and set up my schedule.
Also remembering names is laughably trivial for me now.
It feels like gaining a super power in the form of memory and litteraly everyone thinks you're a genius (even though they could just as easily learn the skill)
How long does it take you?
Do you use any mnemonic techniques?
Would your time not be better spent memorizing foreign vocab?
Do you see an improvement?
Have you checked for cross-task improvements?
What got you doing this? What differences do you see?