The chunking concept really resonates with me. I have been a speedcuber for years (solving Rubik's Cubes really fast) and I can remember Rubik's Cube solves without much effort. If you gave me the scramble of my personal best solve, I could reproduce the same solution.
In some sense it gives me hope that I can also reach the same level of proficiency in more productive areas.
Can you explain for those of us who aren't speedcubers what the scramble is? Is it what it sounds like - a number of pseudo-random twists to undo the solve?
To make an "official" scramble, first they create a random state, which basically means random permutation and random orientation. Then they find a sequence of twists to arrive at the random state.
On the contrary, applying random twists will not give you a truly random state. Some states are more likely than others to be achieved when applying random twists.
A while back I used Anki to learn a bunch of French vocab. At the time it was great and I learned a lot. I eventually stopped and I've probably forgotten most of it.
In some sense it gives me hope that I can also reach the same level of proficiency in more productive areas.